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HIGHLIGHTED ARTICLES

Creating arbitrary quantum vibrational states in a carbon nanotube

Heng Wang and Guido Burkard

Phys. Rev. B 94, 205413 (2016) - Published 10 November, 2016

Due to their small mass and large mechanical stiffness, free-standing carbon nanotubes turn out to be superb high-frequency mechanical resonators that could find applications in mass and force sensing. With resonance frequencies up to the gigahertz regime, one can envision cooling the mechanical motion of such nanotubes to its quantum mechanical ground state at cryogenic temperatures. This opens the possibility to generate highly nonclassical states of the mechanical motion, similar to those created several years ago with electromagnetic radiation in superconducting microwave resonators. Such states are interesting from a fundamental physics point of view, but potentially also for quantum information and sensing applications. While classical activation of a harmonic oscillator will always produce “quasiclassical” coherent states, a necessary ingredient for the production of nonclassical states such as Fock states is a nonlinear element, e.g., superconducting qubits in the case of microwaves. This work predicts that for mechanical oscillations, the spin-orbit coupling of the mechanical motion to a single localized electron spin can do the trick by acting as a nonlinear element for phonons.

Transparency of graphene and other direct-gap two-dimensional materials

Daniel J. Merthe and Vitaly V. Kresin

Phys. Rev. B 94, 205439 (2016) - Published 30 November, 2016

The optical properties of graphene are among its remarkable characteristics. Measurements have found that the opacity of a single graphene layer for infrared and visible light is simply equal to π times the fine-structure constant. Explanations of this beautiful relation have tended to view it as a consequence of the material’s Dirac-like band structure. However, in this paper the authors emphasize that the interband absorption rate must be treated by using the underlying nonrelativistic Hamiltonian, not the quasimomentum state label of the bands. They employ both a straightforward model and a tight-binding calculation to show that the opacity of graphene follows not from its celebrated linear dispersion relation but from the fact that it is a two-dimensional material. The same characteristic is therefore present in semiconductor membranes (as revealed by recent experiments) and other two-dimensional systems. This work focuses attention on the universality that reduced dimensionality bestows on optical absorption.

When strong correlations become weak: Consistent merging of GW and DMFT

L. Boehnke, F. Nilsson, F. Aryasetiawan, and P. Werner

Phys. Rev. B 94, 201106(R) (2016) - Published 10 November, 2016

The spectral functions of strongly correlated metals, with the cubic perovskite SrVO3 as a prototype, are characterized by the presence of satellite structures below and above the main quasiparticle peak. These satellites have been explained as Hubbard bands, whose energy separation is determined by the Hubbard U. Here, the authors show that this commonly accepted interpretation, based largely on LDA+DMFT calculations, has to be reconsidered. An important ingredient missing in these calculations is the nonlocal screening and the nonlocal self-energy. Using a truly first-principles and fully self-consistent GW+extended dynamical mean-field theory calculation, the authors find that the screening from nonlocal Coulomb interactions substantially reduces the effective local Coulomb repulsion, while vertex corrections beyond GW provided by DMFT lead to strong plasmonic effects and a reduction in the plasmon energy. The resulting effective local interactions are too weak to produce pronounced Hubbard bands. Instead, prominent plasmon satellites appear at energies corresponding to the experimentally observed sidebands. The new results demonstrate the important role of nonlocal interactions and dynamical screening in determining the effective interaction strength of correlated compounds and point to the need of revising the current view on the electronic structure of strongly correlated metals.

Spin mapping of surface and bulk Rashba states in ferroelectric α-GeTe(111) films

H. J. Elmers, R. Wallauer, M. Liebmann, J. Kellner, M. Morgenstern, R. N. Wang, J. E. Boschker, R. Calarco, J. Sánchez-Barriga, O. Rader, D. Kutnyakhov, S. V. Chernov, K. Medjanik, C. Tusche, M. Ellguth, H. Volfova, St. Borek, J. Braun, J. Minár, H. Ebert, and G. Schönhense

Phys. Rev. B 94, 201403(R) (2016) - Published 9 November, 2016

In regular semiconductors each electronic state is occupied by spin-up and spin-down electrons. It is well known that inversion symmetry breaking at a surface may lift this degeneracy by spin-orbit coupling (the Rashba effect). As already proposed by Rashba, bulk inversion symmetry breaking may cause a similar degeneracy lifting of bulk states. Ferroelectric materials provide such an inversion symmetry breaking. Thin ferroelectric α-GeTe(111) films grown on Si(111) show a stable ferroelectric polarization with a polarization vector perpendicular to the surface that can be switched by an electric field into a metastable state with opposite polarization. Spin-resolved time-of-flight momentum microscopy reveals a Rashba-type spin splitting of the valence band caused by the inner electric field. Due to orbital polarization, the outer Rashba branch has a larger polarization than the inner branch. The corresponding net spin polarization provides new functionalities in spintronic devices, e.g. it may strongly affect the conversion process of spin into current via the spin-galvanic effect.

Hierarchical quantum master equation approach to electronic-vibrational coupling in nonequilibrium transport through nanosystems

C. Schinabeck, A. Erpenbeck, R. Härtle, and M. Thoss

Phys. Rev. B 94, 201407(R) (2016) - Published 15 November, 2016

Quantum transport in nanosystems is often characterized by strong coupling between electronic and vibrational degrees of freedom. Examples include single-molecule junctions, nanoelectromechanical systems, and suspended carbon nanotubes. Electronic-vibrational coupling manifests itself in vibronic structures in the transport characteristics and results in a multitude of nonequilibrium phenomena, such as current-induced local heating and cooling, multistability, switching, hysteresis, and decoherence. The theoretical study of quantum transport, in particular in the strong-coupling regime, requires nonperturbative approaches that can be systematically converged, i.e., numerically exact methods. In this work, the authors outline how the hierarchical quantum master equation approach, which generalizes perturbative master equation methods by including higher-order contributions as well as non-Markovian memory, can be used in this context. The results show that vibrational nonequilibrium effects are important in a broad spectrum of scenarios, which range from the nonadiabatic to the adiabatic regime and include both resonant and off-resonant transport.

Hyperfine-controlled domain-wall motion observed in real space and time

John N. Moore, Junichiro Hayakawa, Takaaki Mano, Takeshi Noda, and Go Yusa

Phys. Rev. B 94, 201408(R) (2016) - Published 15 November, 2016

Recently, a number of experimental methods have been found by which magnetic domains can be controlled and made to propagate through a host material. Theoretical schemes have also been devised to cleverly manipulate magnetic domains in space in order to enable new logic and memory devices with improved performance. Efforts to better understand the physics of domain motion have revealed that the interactions involved in driving this phenomenon are rich and numerous. The magnetic domains studied in this work form in a GaAs quantum well 2D electron system in a nonequilibrium regime of a correlated state of matter called a fractional quantum Hall liquid. In this exotic medium, ferromagnetic and nonmagnetic domains can be created and made to propagate when the system is excited by a current. This propagation is imaged here in real time using photoluminescence microscopy. The speed of the domains is measured and found to depend on several factors, including the strength of nuclear polarization in the system, as probed by nuclear magnetic resonance. This finding reveals the surprisingly significant impact of the hyperfine interaction on magnetic domain dynamics in a semiconductor, in which noticeable hyperfine effects are uncommon.

Superconducting quantum criticality of topological surface states at three loops

Nikolai Zerf, Chien-Hung Lin, and Joseph Maciejko

Phys. Rev. B 94, 205106 (2016) - Published 3 November, 2016

First proposed in the context of elementary particle physics, supersymmetry is an exotic symmetry that relates bosons and fermions but has not yet been observed in nature. While the traditional expectation is that supersymmetry would be first observed in a high-energy physics experiment, an alternative possibility stressed recently is that supersymmetry could be realized as an emergent symmetry at long wavelengths and low energies in interacting many-particle systems. More specifically, it was suggested that supersymmetry emerges at the quantum phase transition between the gapless Dirac semimetal and a gapped superconductor on the surface of a 3D topological insulator. The authors of this paper provide additional support for the conjecture by performing a three-loop renormalization group calculation and showing that the supersymmetric fixed point in 2+1 dimensions remains stable to that order in perturbation theory.

Slow light and slow acoustic phonons in optophononic resonators

V. Villafañe, P. Soubelet, A. E. Bruchhausen, N. D. Lanzillotti-Kimura, B. Jusserand, A. Lemaître, and A. Fainstein

Phys. Rev. B 94, 205308 (2016) - Published 28 November, 2016

Slow light has been exploited in optoelectronics to enhance the light-matter interaction, including light absorption and emission, nonlinear processes such as sum-frequency generation and phase modulation, and lasing. Modulated structures that modify the propagation of light can also be tailored to alter the propagation of sound. The question then arises: how can slow high-frequency acoustic waves and slow light in the same device perform with a perspective in optomechanics? This question becomes particularly relevant in view of recent reports of photon lifetimes extended to the millisecond range (lifetimes that are characteristic of phonons) by introducing slow-light effects in microresonators. With this application in mind, this work studies DBR-based GaAs/AlAs microcavities as structures that present both light confinement and slowing-down, depending on whether the laser is tuned resonantly to the cavity or stop-band edge modes. Interestingly, the authors show that for these kind of devices precisely the same happens for acoustic phonons, thus providing a rich playground to investigate confined and slow optomechanical effects. Time-resolved coherent phonon generation experiments using picosecond lasers are reported, showing a strong enhancement of the optomechanical coupling using both confined and also properly designed slow photon and phonon modes. The prospects for the use of these optoelectronic devices in confined and slow optomechanics is addressed.

Momentum-resolved hot electron dynamics at the 2HMoS2 surface

P. Hein, A. Stange, K. Hanff, L. X. Yang, G. Rohde, K. Rossnagel, and M. Bauer

Phys. Rev. B 94, 205406 (2016) - Published 7 November, 2016

The layered transition-metal dichalcogenide MoS2 as well as related compounds, such as WS2 and WSe2, undergo a transition from an indirect to a direct band-gap semiconductor when thinned down to a single layer. This unexpected observation, which goes along with substantial changes in electronic and optical properties, has stimulated numerous recent studies on this compound class, including pump-probe time-domain studies addressing fundamental aspects of hot carrier relaxation. So far, mainly all-optical methods have been applied to probe the ultrafast dynamics in a rather comprehensive manner. Due to intermixing of different processes and a lack of momentum-resolution, the interpretation of such data is, however, not necessarily straightforward. In order to complement these studies, the authors present here results of a time- and angle-resolved photoemission (trARPES) experiment on bulk MoS2, a technique that provides the most direct view onto hot electron dynamics in energy and momentum space. Surprisingly, the new data agree well with past results of monolayer MoS2 as opposed to bulk MoS2. The authors interpret this finding in terms of the high density of surface defects in MoS2 samples, which substantially affect hot carrier relaxation due to trapping. In contrast to all optical studies, trARPES is very efficient in probing such processes owing to the extreme surface sensitivity of photoemission.

RAPID COMMUNICATIONS

Electronic structure and strongly correlated systems

Phase diagram and correlation functions of the two-dimensional dissipative quantum XY model

Changtao Hou and Chandra M. Varma

Phys. Rev. B 94, 201101(R) (2016) - Published 2 November, 2016

Distinct magnetic spectra in the hidden order and antiferromagnetic phases in URu2xFexSi2

Nicholas P. Butch, Sheng Ran, Inho Jeon, Noravee Kanchanavatee, Kevin Huang, Alexander Breindel, M. Brian Maple, Ryan L. Stillwell, Yang Zhao, Leland Harriger, and Jeffrey W. Lynn

Phys. Rev. B 94, 201102(R) (2016) - Published 7 November, 2016

Exceptional points in three-dimensional plasmonic nanostructures

Ashok Kodigala, Thomas Lepetit, and Boubacar Kanté

Phys. Rev. B 94, 201103(R) (2016) - Published 8 November, 2016

Proposed two-dimensional topological insulator in SiTe

Yandong Ma, Liangzhi Kou, Ying Dai, and Thomas Heine

Phys. Rev. B 94, 201104(R) (2016) - Published 9 November, 2016

Reservoir-induced Thouless pumping and symmetry-protected topological order in open quantum chains

D. Linzner, L. Wawer, F. Grusdt, and M. Fleischhauer

Phys. Rev. B 94, 201105(R) (2016) - Published 9 November, 2016

When strong correlations become weak: Consistent merging of GW and DMFT

L. Boehnke, F. Nilsson, F. Aryasetiawan, and P. Werner

Phys. Rev. B 94, 201106(R) (2016) - Published 10 November, 2016

The spectral functions of strongly correlated metals, with the cubic perovskite SrVO3 as a prototype, are characterized by the presence of satellite structures below and above the main quasiparticle peak. These satellites have been explained as Hubbard bands, whose energy separation is determined by the Hubbard U. Here, the authors show that this commonly accepted interpretation, based largely on LDA+DMFT calculations, has to be reconsidered. An important ingredient missing in these calculations is the nonlocal screening and the nonlocal self-energy. Using a truly first-principles and fully self-consistent GW+extended dynamical mean-field theory calculation, the authors find that the screening from nonlocal Coulomb interactions substantially reduces the effective local Coulomb repulsion, while vertex corrections beyond GW provided by DMFT lead to strong plasmonic effects and a reduction in the plasmon energy. The resulting effective local interactions are too weak to produce pronounced Hubbard bands. Instead, prominent plasmon satellites appear at energies corresponding to the experimentally observed sidebands. The new results demonstrate the important role of nonlocal interactions and dynamical screening in determining the effective interaction strength of correlated compounds and point to the need of revising the current view on the electronic structure of strongly correlated metals.

Evidence for unidirectional nematic bond ordering in FeSe

M. D. Watson, T. K. Kim, L. C. Rhodes, M. Eschrig, M. Hoesch, A. A. Haghighirad, and A. I. Coldea

Phys. Rev. B 94, 201107(R) (2016) - Published 11 November, 2016

Distinct surface and bulk charge density waves in ultrathin 1TTaS2

Rui He, Junichi Okamoto, Zhipeng Ye, Gaihua Ye, Heidi Anderson, Xia Dai, Xianxin Wu, Jiangping Hu, Yu Liu, Wenjian Lu, Yuping Sun, Abhay N. Pasupathy, and Adam W. Tsen

Phys. Rev. B 94, 201108(R) (2016) - Published 14 November, 2016

Orbital-differentiated coherence-incoherence crossover identified by photoemission spectroscopy in LiFeAs

H. Miao, Z. P. Yin, S. F. Wu, J. M. Li, J. Ma, B.-Q. Lv, X. P. Wang, T. Qian, P. Richard, L.-Y. Xing, X.-C. Wang, C. Q. Jin, K. Haule, G. Kotliar, and H. Ding

Phys. Rev. B 94, 201109(R) (2016) - Published 14 November, 2016

Spin dynamics of counterrotating Kitaev spirals via duality

Itamar Kimchi and Radu Coldea

Phys. Rev. B 94, 201110(R) (2016) - Published 16 November, 2016

Spin liquid and quantum phase transition without symmetry breaking in a frustrated three-dimensional Ising model

Julia Röchner, Leon Balents, and Kai Phillip Schmidt

Phys. Rev. B 94, 201111(R) (2016) - Published 17 November, 2016

Drude weight fluctuations in many-body localized systems

Michele Filippone, Piet W. Brouwer, Jens Eisert, and Felix von Oppen

Phys. Rev. B 94, 201112(R) (2016) - Published 18 November, 2016

Possible SU(3) chiral spin liquid on the kagome lattice

Ying-Hai Wu and Hong-Hao Tu

Phys. Rev. B 94, 201113(R) (2016) - Published 18 November, 2016

Hidden multipolar orders of dipole-octupole doublets on a triangular lattice

Yao-Dong Li, Xiaoqun Wang, and Gang Chen

Phys. Rev. B 94, 201114(R) (2016) - Published 18 November, 2016

Concurrent magnetic and structural reconstructions at the interface of (111)-oriented La0.7Sr0.3MnO3/LaFeO3

I. Hallsteinsen, M. Moreau, A. Grutter, M. Nord, P.-E. Vullum, D. A. Gilbert, T. Bolstad, J. K. Grepstad, R. Holmestad, S. M. Selbach, A. T. N’Diaye, B. J. Kirby, E. Arenholz, and T. Tybell

Phys. Rev. B 94, 201115(R) (2016) - Published 21 November, 2016

Many-body localization in system with a completely delocalized single-particle spectrum

Yevgeny Bar Lev, David R. Reichman, and Yoav Sagi

Phys. Rev. B 94, 201116(R) (2016) - Published 21 November, 2016

Measurement of the topological surface state optical conductance in bulk-insulating Sn-doped Bi1.1Sb0.9Te2S single crystals

Bing Cheng, Liang Wu, S. K. Kushwaha, R. J. Cava, and N. P. Armitage

Phys. Rev. B 94, 201117(R) (2016) - Published 22 November, 2016

Enhancement of electron hot spot relaxation in photoexcited plasmonic structures by thermal diffusion

F. Spitzer, B. A. Glavin, V. I. Belotelov, J. Vondran, I. A. Akimov, S. Kasture, V. G. Achanta, D. R. Yakovlev, and M. Bayer

Phys. Rev. B 94, 201118(R) (2016) - Published 22 November, 2016

Tracking local magnetic dynamics via high-energy charge excitations in a relativistic Mott insulator

N. Nembrini, S. Peli, F. Banfi, G. Ferrini, Yogesh Singh, P. Gegenwart, R. Comin, K. Foyevtsova, A. Damascelli, A. Avella, and C. Giannetti

Phys. Rev. B 94, 201119(R) (2016) - Published 22 November, 2016

Collective transport of charges in charge density wave systems based on traveling soliton lattices

A. Rojo-Bravo, V. L. R. Jacques, and D. Le Bolloc'h

Phys. Rev. B 94, 201120(R) (2016) - Published 28 November, 2016

Nearly-free-electron system of monolayer Na on the surface of single-crystal HfSe2

T. Eknapakul, I. Fongkaew, S. Siriroj, R. Vidyasagar, J. D. Denlinger, L. Bawden, S.-K. Mo, P. D. C. King, H. Takagi, S. Limpijumnong, and W. Meevasana

Phys. Rev. B 94, 201121(R) (2016) - Published 28 November, 2016

Semiconductors I: bulk

Ab initio electron mobility and polar phonon scattering in GaAs

Jin-Jian Zhou and Marco Bernardi

Phys. Rev. B 94, 201201(R) (2016) - Published 28 November, 2016

Semiconductors II: surfaces, interfaces, microstructures, and related topics

Full Stark control of polariton states on a spin-orbit hypersphere

Feng Li, E. Cancellieri, G. Buonaiuto, M. S. Skolnick, D. N. Krizhanovskii, and D. M. Whittaker

Phys. Rev. B 94, 201301(R) (2016) - Published 29 November, 2016

Surface physics, nanoscale physics, low-dimensional systems

Reconstruction-induced trefoil knot Fermi contour of Au(111)

Maciej Dendzik, Marco Bianchi, Matteo Michiardi, Charlotte E. Sanders, and Philip Hofmann

Phys. Rev. B 94, 201401(R) (2016) - Published 3 November, 2016

Crossover to the anomalous quantum regime in the extrinsic spin Hall effect of graphene

Mirco Milletarì and Aires Ferreira

Phys. Rev. B 94, 201402(R) (2016) - Published 7 November, 2016

Spin mapping of surface and bulk Rashba states in ferroelectric α-GeTe(111) films

H. J. Elmers, R. Wallauer, M. Liebmann, J. Kellner, M. Morgenstern, R. N. Wang, J. E. Boschker, R. Calarco, J. Sánchez-Barriga, O. Rader, D. Kutnyakhov, S. V. Chernov, K. Medjanik, C. Tusche, M. Ellguth, H. Volfova, St. Borek, J. Braun, J. Minár, H. Ebert, and G. Schönhense

Phys. Rev. B 94, 201403(R) (2016) - Published 9 November, 2016

In regular semiconductors each electronic state is occupied by spin-up and spin-down electrons. It is well known that inversion symmetry breaking at a surface may lift this degeneracy by spin-orbit coupling (the Rashba effect). As already proposed by Rashba, bulk inversion symmetry breaking may cause a similar degeneracy lifting of bulk states. Ferroelectric materials provide such an inversion symmetry breaking. Thin ferroelectric α-GeTe(111) films grown on Si(111) show a stable ferroelectric polarization with a polarization vector perpendicular to the surface that can be switched by an electric field into a metastable state with opposite polarization. Spin-resolved time-of-flight momentum microscopy reveals a Rashba-type spin splitting of the valence band caused by the inner electric field. Due to orbital polarization, the outer Rashba branch has a larger polarization than the inner branch. The corresponding net spin polarization provides new functionalities in spintronic devices, e.g. it may strongly affect the conversion process of spin into current via the spin-galvanic effect.

Epsilon-near-zero behavior from plasmonic Dirac point: Theory and realization using two-dimensional materials

Marios Mattheakis, Constantinos A. Valagiannopoulos, and Efthimios Kaxiras

Phys. Rev. B 94, 201404(R) (2016) - Published 10 November, 2016

Alkali doping of graphene: The crucial role of high-temperature annealing

A. Khademi, E. Sajadi, P. Dosanjh, D. A. Bonn, J. A. Folk, A. Stöhr, U. Starke, and S. Forti

Phys. Rev. B 94, 201405(R) (2016) - Published 11 November, 2016

Material-independent modes for electromagnetic scattering

Carlo Forestiere and Giovanni Miano

Phys. Rev. B 94, 201406(R) (2016) - Published 14 November, 2016

Hierarchical quantum master equation approach to electronic-vibrational coupling in nonequilibrium transport through nanosystems

C. Schinabeck, A. Erpenbeck, R. Härtle, and M. Thoss

Phys. Rev. B 94, 201407(R) (2016) - Published 15 November, 2016

Quantum transport in nanosystems is often characterized by strong coupling between electronic and vibrational degrees of freedom. Examples include single-molecule junctions, nanoelectromechanical systems, and suspended carbon nanotubes. Electronic-vibrational coupling manifests itself in vibronic structures in the transport characteristics and results in a multitude of nonequilibrium phenomena, such as current-induced local heating and cooling, multistability, switching, hysteresis, and decoherence. The theoretical study of quantum transport, in particular in the strong-coupling regime, requires nonperturbative approaches that can be systematically converged, i.e., numerically exact methods. In this work, the authors outline how the hierarchical quantum master equation approach, which generalizes perturbative master equation methods by including higher-order contributions as well as non-Markovian memory, can be used in this context. The results show that vibrational nonequilibrium effects are important in a broad spectrum of scenarios, which range from the nonadiabatic to the adiabatic regime and include both resonant and off-resonant transport.

Hyperfine-controlled domain-wall motion observed in real space and time

John N. Moore, Junichiro Hayakawa, Takaaki Mano, Takeshi Noda, and Go Yusa

Phys. Rev. B 94, 201408(R) (2016) - Published 15 November, 2016

Recently, a number of experimental methods have been found by which magnetic domains can be controlled and made to propagate through a host material. Theoretical schemes have also been devised to cleverly manipulate magnetic domains in space in order to enable new logic and memory devices with improved performance. Efforts to better understand the physics of domain motion have revealed that the interactions involved in driving this phenomenon are rich and numerous. The magnetic domains studied in this work form in a GaAs quantum well 2D electron system in a nonequilibrium regime of a correlated state of matter called a fractional quantum Hall liquid. In this exotic medium, ferromagnetic and nonmagnetic domains can be created and made to propagate when the system is excited by a current. This propagation is imaged here in real time using photoluminescence microscopy. The speed of the domains is measured and found to depend on several factors, including the strength of nuclear polarization in the system, as probed by nuclear magnetic resonance. This finding reveals the surprisingly significant impact of the hyperfine interaction on magnetic domain dynamics in a semiconductor, in which noticeable hyperfine effects are uncommon.

Direct visualization of the periodic displacement of Ta atoms in the commensurate charge density wave phase of 1TTaSe2 in real space

Keita Kobayashi and Hidehiro Yasuda

Phys. Rev. B 94, 201409(R) (2016) - Published 16 November, 2016

Relativistic k·p Hamiltonians for centrosymmetric topological insulators from ab initio wave functions

I. A. Nechaev and E. E. Krasovskii

Phys. Rev. B 94, 201410(R) (2016) - Published 28 November, 2016

ARTICLES

Electronic structure and strongly correlated systems

Multiple charge density wave states at the surface of TbTe3

Ling Fu, Aaron M. Kraft, Bishnu Sharma, Manoj Singh, Philip Walmsley, Ian R. Fisher, and Michael C. Boyer

Phys. Rev. B 94, 205101 (2016) - Published 1 November, 2016

Bound states in string nets

Marc Daniel Schulz, Sébastien Dusuel, and Julien Vidal

Phys. Rev. B 94, 205102 (2016) - Published 1 November, 2016

Interrupted orbital motion in density-wave systems

Maxim Breitkreiz, P. M. R. Brydon, and Carsten Timm

Phys. Rev. B 94, 205103 (2016) - Published 2 November, 2016

Resistive properties and phase diagram of the organic antiferromagnetic metal κ(BETS)2FeCl4

Michael Kunz, Werner Biberacher, Natalia D. Kushch, Akira Miyazaki, and Mark V. Kartsovnik

Phys. Rev. B 94, 205104 (2016) - Published 2 November, 2016

Bulk-edge correspondence for topological photonic continua

Mário G. Silveirinha

Phys. Rev. B 94, 205105 (2016) - Published 2 November, 2016

Superconducting quantum criticality of topological surface states at three loops

Nikolai Zerf, Chien-Hung Lin, and Joseph Maciejko

Phys. Rev. B 94, 205106 (2016) - Published 3 November, 2016

First proposed in the context of elementary particle physics, supersymmetry is an exotic symmetry that relates bosons and fermions but has not yet been observed in nature. While the traditional expectation is that supersymmetry would be first observed in a high-energy physics experiment, an alternative possibility stressed recently is that supersymmetry could be realized as an emergent symmetry at long wavelengths and low energies in interacting many-particle systems. More specifically, it was suggested that supersymmetry emerges at the quantum phase transition between the gapless Dirac semimetal and a gapped superconductor on the surface of a 3D topological insulator. The authors of this paper provide additional support for the conjecture by performing a three-loop renormalization group calculation and showing that the supersymmetric fixed point in 2+1 dimensions remains stable to that order in perturbation theory.

Persistent photoinduced modifications in the phase-separated states of La22xSr1+2xMn2O7

Kai Sun, Shuaishuai Sun, Xingyuan Li, Zhongwen Li, Ruixin Zhang, Linlin Wei, Cong Guo, Dingguo Zheng, Huanfang Tian, Huaixin Yang, and Jianqi Li

Phys. Rev. B 94, 205108 (2016) - Published 4 November, 2016

Quasi-one-dimensional spin-orbit-coupled correlated insulator in a multinuclear coordinated organometallic crystal

J. Merino, A. C. Jacko, A. L. Khosla, and B. J. Powell

Phys. Rev. B 94, 205109 (2016) - Published 4 November, 2016

From local to nonlocal correlations: The Dual Boson perspective

E. A. Stepanov, A. Huber, E. G. C. P. van Loon, A. I. Lichtenstein, and M. I. Katsnelson

Phys. Rev. B 94, 205110 (2016) - Published 7 November, 2016

Disentangling bulk and surface Rashba effects in ferroelectric α-GeTe

J. Krempaský, H. Volfová, S. Muff, N. Pilet, G. Landolt, M. Radović, M. Shi, D. Kriegner, V. Holý, J. Braun, H. Ebert, F. Bisti, V. A. Rogalev, V. N. Strocov, G. Springholz, J. Minár, and J. H. Dil

Phys. Rev. B 94, 205111 (2016) - Published 7 November, 2016

Spontaneous dimerization, critical lines, and short-range correlations in a frustrated spin-1 chain

Natalia Chepiga, Ian Affleck, and Frédéric Mila

Phys. Rev. B 94, 205112 (2016) - Published 8 November, 2016

Strong correlations, strong coupling, and s-wave superconductivity in hole-doped BaFe2As2 single crystals

F. Hardy, A. E. Böhmer, L. de' Medici, M. Capone, G. Giovannetti, R. Eder, L. Wang, M. He, T. Wolf, P. Schweiss, R. Heid, A. Herbig, P. Adelmann, R. A. Fisher, and C. Meingast

Phys. Rev. B 94, 205113 (2016) - Published 8 November, 2016

Weak antilocalization and linear magnetoresistance in the surface state of SmB6

S. Thomas, D. J. Kim, S. B. Chung, T. Grant, Z. Fisk, and Jing Xia

Phys. Rev. B 94, 205114 (2016) - Published 9 November, 2016

Validity boundary of orbital-free molecular dynamics method corresponding to thermal ionization of shell structure

Chang Gao, Shen Zhang, Wei Kang, Cong Wang, Ping Zhang, and X. T. He

Phys. Rev. B 94, 205115 (2016) - Published 9 November, 2016

Ru2NbGa: A Heusler-type compound with semimetallic characteristics

C. N. Kuo, H. W. Lee, C.-M. Wei, Y. H. Lin, Y. K. Kuo, and C. S. Lue

Phys. Rev. B 94, 205116 (2016) - Published 9 November, 2016

Fractionalized Fermi liquid with bosonic chargons as a candidate for the pseudogap metal

Shubhayu Chatterjee and Subir Sachdev

Phys. Rev. B 94, 205117 (2016) - Published 10 November, 2016

Generating spin squeezing states and Greenberger-Horne-Zeilinger entanglement using a hybrid phonon-spin ensemble in diamond

Keyu Xia (夏可宇) and Jason Twamley

Phys. Rev. B 94, 205118 (2016) - Published 10 November, 2016

Realization of anomalous multiferroicity in free-standing graphene with magnetic adatoms

Y. Marques, L. S. Ricco, F. A. Dessotti, R. S. Machado, I. A. Shelykh, M. de Souza, and A. C. Seridonio

Phys. Rev. B 94, 205119 (2016) - Published 10 November, 2016

Signature of chiral fermion instability in the Weyl semimetal TaAs above the quantum limit

Cheng-Long Zhang, Bingbing Tong, Zhujun Yuan, Ziquan Lin, Junfeng Wang, Jinglei Zhang, Chuan-Ying Xi, Zhong Wang, Shuang Jia, and Chi Zhang

Phys. Rev. B 94, 205120 (2016) - Published 11 November, 2016

Contradictory nature of Co doping in ferroelectric BaTiO3

Patrick Ponath, Andrew O’Hara, Hai-Xia Cao, Agham B. Posadas, Rama Vasudevan, M. Baris Okatan, S. Jesse, Morgann Berg, Zongyao Li, Desai Zhang, Andrew J. Kellock, Alex de Lozanne, Jianshi Zhou, Sergei Kalinin, David J. Smith, and Alexander A. Demkov

Phys. Rev. B 94, 205121 (2016) - Published 11 November, 2016

Matrix product state renormalization

M. Bal, M. M. Rams, V. Zauner, J. Haegeman, and F. Verstraete

Phys. Rev. B 94, 205122 (2016) - Published 14 November, 2016

Detecting topological order with ribbon operators

Jacob C. Bridgeman, Steven T. Flammia, and David Poulin

Phys. Rev. B 94, 205123 (2016) - Published 14 November, 2016

Systematic construction of spin liquids on the square lattice from tensor networks with SU(2) symmetry

Matthieu Mambrini, Román Orús, and Didier Poilblanc

Phys. Rev. B 94, 205124 (2016) - Published 14 November, 2016

Transfer matrix approach to the persistent current in quantum rings: Application to hybrid normal-superconducting rings

Andrea Nava, Rosa Giuliano, Gabriele Campagnano, and Domenico Giuliano

Phys. Rev. B 94, 205125 (2016) - Published 15 November, 2016

A free-electron model for the Dirac bands in graphene

G. S. Kissinger and S. Satpathy

Phys. Rev. B 94, 205126 (2016) - Published 16 November, 2016

Phonon instability and pressure-induced isostructural semiconductor-semimetal transition of monoclinic VO2

Huabing He, Heng Gao, Wei Wu, Shixun Cao, Jiawang Hong, Dehong Yu, Guochu Deng, Yanfeng Gao, Peihong Zhang, Hongjie Luo, and Wei Ren

Phys. Rev. B 94, 205127 (2016) - Published 16 November, 2016

Spin glass behavior in LaCo1xRhxO3 (x=0.4, 0.5, and 0.6)

H. Guo, K. Manna, H. Luetkens, M. Hoelzel, and A. C. Komarek

Phys. Rev. B 94, 205128 (2016) - Published 17 November, 2016

Instability of three-band Tomonaga-Luttinger liquid: Renormalization group analysis and possible application to K2Cr3As3

Jian-Jian Miao, Fu-Chun Zhang, and Yi Zhou

Phys. Rev. B 94, 205129 (2016) - Published 18 November, 2016

Ab initio electronic structure and optical conductivity of bismuth tellurohalides

Sebastian Schwalbe, René Wirnata, Ronald Starke, Giulio A. H. Schober, and Jens Kortus

Phys. Rev. B 94, 205130 (2016) - Published 18 November, 2016

Interplay between nanolaminated structure and electron-phonon coupling in Ti-based MAX phases

A. Nassour, V. Mauchamp, and S. Dubois

Phys. Rev. B 94, 205131 (2016) - Published 21 November, 2016

Optical response from terahertz to visible light of electronuclear transitions in LiYF4:Ho3+

G. Matmon, S. A. Lynch, T. F. Rosenbaum, A. J. Fisher, and G. Aeppli

Phys. Rev. B 94, 205132 (2016) - Published 21 November, 2016

Quadratic Zeeman effect and spin-lattice relaxation of Tm3+:YAG at high magnetic fields

Lucile Veissier, Charles W. Thiel, Thomas Lutz, Paul E. Barclay, Wolfgang Tittel, and Rufus L. Cone

Phys. Rev. B 94, 205133 (2016) - Published 22 November, 2016

Local density approximations from finite systems

M. T. Entwistle, M. J. P. Hodgson, J. Wetherell, B. Longstaff, J. D. Ramsden, and R. W. Godby

Phys. Rev. B 94, 205134 (2016) - Published 23 November, 2016

Individual band with higher Chern numbers in double perovskite (001) monolayers

A. M. Cook

Phys. Rev. B 94, 205135 (2016) - Published 23 November, 2016

Gauge-field-assisted Kekulé quantum criticality

Michael M. Scherer and Igor F. Herbut

Phys. Rev. B 94, 205136 (2016) - Published 23 November, 2016

Coherent two-dimensional spectroscopy of a Fano model

Daniel Finkelstein-Shapiro, Felipe Poulsen, Tõnu Pullerits, and Thorsten Hansen

Phys. Rev. B 94, 205137 (2016) - Published 23 November, 2016

Origin of electron disproportionation in metallic sodium cobaltates

Y. V. Lysogorskiy, S. A. Krivenko, I. R. Mukhamedshin, O. V. Nedopekin, and D. A. Tayurskii

Phys. Rev. B 94, 205138 (2016) - Published 23 November, 2016

Topological phase transitions and universality in the Haldane-Hubbard model

Alessandro Giuliani, Ian Jauslin, Vieri Mastropietro, and Marcello Porta

Phys. Rev. B 94, 205139 (2016) - Published 28 November, 2016

Fermi-surface topologies and low-temperature phases of the filled skutterudite compounds CeOs4Sb12 and NdOs4Sb12

Pei Chun Ho, John Singleton, Paul A. Goddard, Fedor F. Balakirev, Shalinee Chikara, Tatsuya Yanagisawa, M. Brian Maple, David B. Shrekenhamer, Xia Lee, and Avraham T. Thomas

Phys. Rev. B 94, 205140 (2016) - Published 28 November, 2016

Universality classes of order parameters composed of many-body bound states

A. M. Tsvelik

Phys. Rev. B 94, 205141 (2016) - Published 28 November, 2016

Magnetism in f-electron superlattices

Robert Peters, Yasuhiro Tada, and Norio Kawakami

Phys. Rev. B 94, 205142 (2016) - Published 28 November, 2016

Magnetostructural coupling and multiferroic properties in the spin-frustrated system Ni1xZnxCr2O4

K. Devi Chandrasekhar, J. Krishna Murthy, J.-Y. Lin, H. C. Wu, W. J. Tseng, A. Venimadhav, and H. D. Yang

Phys. Rev. B 94, 205143 (2016) - Published 28 November, 2016

Charge transfer and symmetry reduction at the CuPc/Ag(110) interface studied by photoemission tomography

K. Schönauer, S. Weiss, V. Feyer, D. Lüftner, B. Stadtmüller, D. Schwarz, T. Sueyoshi, C. Kumpf, P. Puschnig, M. G. Ramsey, F. S. Tautz, and S. Soubatch

Phys. Rev. B 94, 205144 (2016) - Published 28 November, 2016

Magnetic excitation spectra of strongly correlated quasi-one-dimensional systems: Heisenberg versus Hubbard-like behavior

A. Nocera, N. D. Patel, J. Fernandez-Baca, E. Dagotto, and G. Alvarez

Phys. Rev. B 94, 205145 (2016) - Published 28 November, 2016

Nonequilibrium variational cluster perturbation theory: Quench dynamics of the quantum Ising model

Mohammad Zhian Asadzadeh, Michele Fabrizio, and Enrico Arrigoni

Phys. Rev. B 94, 205146 (2016) - Published 28 November, 2016

Monte Carlo study of Dirac semimetals phase diagram

V. V. Braguta, M. I. Katsnelson, A. Yu. Kotov, and A. A. Nikolaev

Phys. Rev. B 94, 205147 (2016) - Published 29 November, 2016

Spectroscopic signatures of molecular orbitals in transition metal oxides with a honeycomb lattice

Z. V. Pchelkina, S. V. Streltsov, and I. I. Mazin

Phys. Rev. B 94, 205148 (2016) - Published 29 November, 2016

Anomalies and symmetry fractionalization in reflection-symmetric topological order

Ethan Lake

Phys. Rev. B 94, 205149 (2016) - Published 30 November, 2016

Matrix product operators for symmetry-protected topological phases: Gauging and edge theories

Dominic J. Williamson, Nick Bultinck, Michael Mariën, Mehmet B. Şahinoğlu, Jutho Haegeman, and Frank Verstraete

Phys. Rev. B 94, 205150 (2016) - Published 30 November, 2016

Semiconductors I: bulk

Disorder effects on the band structure of ZnGeN2: Role of exchange defects

Dmitry Skachkov, Paul C. Quayle, Kathleen Kash, and Walter R. L. Lambrecht

Phys. Rev. B 94, 205201 (2016) - Published 1 November, 2016

Insulator to semimetallic transition in conducting polymers

W. A. Muñoz, Sandeep Kumar Singh, J. F. Franco-Gonzalez, M. Linares, X. Crispin, and I. V. Zozoulenko

Phys. Rev. B 94, 205202 (2016) - Published 17 November, 2016

Effects of La 5d and 4f states on the electronic and optical properties of LaAlO3

Jimmy-Xuan Shen, André Schleife, Anderson Janotti, and Chris G. Van de Walle

Phys. Rev. B 94, 205203 (2016) - Published 22 November, 2016

Evolution kinetics of elementary point defects in ZnO implanted with low fluences of helium at cryogenic temperature

C. Bhoodoo, A. Hupfer, L. Vines, E. V. Monakhov, and B. G. Svensson

Phys. Rev. B 94, 205204 (2016) - Published 28 November, 2016

Semiconductors II: surfaces, interfaces, microstructures, and related topics

Real-space Hopfield diagonalization of inhomogeneous dispersive media

Christopher R. Gubbin, Stefan A. Maier, and Simone De Liberato

Phys. Rev. B 94, 205301 (2016) - Published 3 November, 2016

Spin-resolved orbital magnetization in Rashba two-dimensional electron gas

A. Dyrdał, V. K. Dugaev, and J. Barnaś

Phys. Rev. B 94, 205302 (2016) - Published 4 November, 2016

Charge density wave with meronlike spin texture induced by a lateral superlattice in a two-dimensional electron gas

R. Côté and Xavier Bazier-Matte

Phys. Rev. B 94, 205303 (2016) - Published 7 November, 2016

Modeling the competition between elastic and plastic relaxation in semiconductor heteroepitaxy: From cyclic growth to flat films

Fabrizio Rovaris, Roberto Bergamaschini, and Francesco Montalenti

Phys. Rev. B 94, 205304 (2016) - Published 16 November, 2016

Collinear scattering of photoexcited carriers in graphene

Maxim Trushin

Phys. Rev. B 94, 205306 (2016) - Published 28 November, 2016

Surface and bulk contributions to the second-harmonic generation in Bi2Se3

Hui Shi, Yu Zhang, Mengyu Yao, Fuhao Ji, Dong Qian, Shan Qiao, Y. R. Shen, and Wei-Tao Liu

Phys. Rev. B 94, 205307 (2016) - Published 28 November, 2016

Slow light and slow acoustic phonons in optophononic resonators

V. Villafañe, P. Soubelet, A. E. Bruchhausen, N. D. Lanzillotti-Kimura, B. Jusserand, A. Lemaître, and A. Fainstein

Phys. Rev. B 94, 205308 (2016) - Published 28 November, 2016

Slow light has been exploited in optoelectronics to enhance the light-matter interaction, including light absorption and emission, nonlinear processes such as sum-frequency generation and phase modulation, and lasing. Modulated structures that modify the propagation of light can also be tailored to alter the propagation of sound. The question then arises: how can slow high-frequency acoustic waves and slow light in the same device perform with a perspective in optomechanics? This question becomes particularly relevant in view of recent reports of photon lifetimes extended to the millisecond range (lifetimes that are characteristic of phonons) by introducing slow-light effects in microresonators. With this application in mind, this work studies DBR-based GaAs/AlAs microcavities as structures that present both light confinement and slowing-down, depending on whether the laser is tuned resonantly to the cavity or stop-band edge modes. Interestingly, the authors show that for these kind of devices precisely the same happens for acoustic phonons, thus providing a rich playground to investigate confined and slow optomechanical effects. Time-resolved coherent phonon generation experiments using picosecond lasers are reported, showing a strong enhancement of the optomechanical coupling using both confined and also properly designed slow photon and phonon modes. The prospects for the use of these optoelectronic devices in confined and slow optomechanics is addressed.

Quantum gates with donors in germanium

Giuseppe Pica and Brendon W. Lovett

Phys. Rev. B 94, 205309 (2016) - Published 29 November, 2016

Surface physics, nanoscale physics, low-dimensional systems

Thermoelectric effects in topological crystalline insulators

Babak Zare Rameshti and Reza Asgari

Phys. Rev. B 94, 205401 (2016) - Published 2 November, 2016

Model Hamiltonian approach to the magnetic anisotropy of iron phthalocyanine at solid surfaces

Emi Minamitani, Noriaki Takagi, and Satoshi Watanabe

Phys. Rev. B 94, 205402 (2016) - Published 3 November, 2016

Helium diffraction on SiC grown graphene: Qualitative and quantitative descriptions with the hard-corrugated-wall model

Maxime Debiossac, Asier Zugarramurdi, Zhao Mu, Petru Lunca-Popa, Andrew J. Mayne, and Philippe Roncin

Phys. Rev. B 94, 205403 (2016) - Published 3 November, 2016

STM-driven transition from rippled to buckled graphene in a spin-membrane model

M. Ruiz-García, L. L. Bonilla, and A. Prados

Phys. Rev. B 94, 205404 (2016) - Published 4 November, 2016

Continuous or discrete: Tuning the energy level alignment of organic layers with alkali dopants

Thomas Ules, Daniel Lüftner, Eva Maria Reinisch, Georg Koller, Peter Puschnig, and Michael G. Ramsey

Phys. Rev. B 94, 205405 (2016) - Published 7 November, 2016

Momentum-resolved hot electron dynamics at the 2HMoS2 surface

P. Hein, A. Stange, K. Hanff, L. X. Yang, G. Rohde, K. Rossnagel, and M. Bauer

Phys. Rev. B 94, 205406 (2016) - Published 7 November, 2016

The layered transition-metal dichalcogenide MoS2 as well as related compounds, such as WS2 and WSe2, undergo a transition from an indirect to a direct band-gap semiconductor when thinned down to a single layer. This unexpected observation, which goes along with substantial changes in electronic and optical properties, has stimulated numerous recent studies on this compound class, including pump-probe time-domain studies addressing fundamental aspects of hot carrier relaxation. So far, mainly all-optical methods have been applied to probe the ultrafast dynamics in a rather comprehensive manner. Due to intermixing of different processes and a lack of momentum-resolution, the interpretation of such data is, however, not necessarily straightforward. In order to complement these studies, the authors present here results of a time- and angle-resolved photoemission (trARPES) experiment on bulk MoS2, a technique that provides the most direct view onto hot electron dynamics in energy and momentum space. Surprisingly, the new data agree well with past results of monolayer MoS2 as opposed to bulk MoS2. The authors interpret this finding in terms of the high density of surface defects in MoS2 samples, which substantially affect hot carrier relaxation due to trapping. In contrast to all optical studies, trARPES is very efficient in probing such processes owing to the extreme surface sensitivity of photoemission.

Influence of out-of-plane response on optical properties of two-dimensional materials: First principles approach

Lars Matthes, Olivia Pulci, and Friedhelm Bechstedt

Phys. Rev. B 94, 205408 (2016) - Published 8 November, 2016

Stability of single-layer and multilayer arsenene and their mechanical and electronic properties

D. Kecik, E. Durgun, and S. Ciraci

Phys. Rev. B 94, 205409 (2016) - Published 8 November, 2016

Optical properties of single-layer and bilayer arsenene phases

D. Kecik, E. Durgun, and S. Ciraci

Phys. Rev. B 94, 205410 (2016) - Published 8 November, 2016

Changes in work function due to NO2 adsorption on monolayer and bilayer epitaxial graphene on SiC(0001)

Nuala M. Caffrey, Rickard Armiento, Rositsa Yakimova, and Igor A. Abrikosov

Phys. Rev. B 94, 205411 (2016) - Published 10 November, 2016

Lifting the Franck-Condon blockade in driven quantum dots

Patrick Haughian, Stefan Walter, Andreas Nunnenkamp, and Thomas L. Schmidt

Phys. Rev. B 94, 205412 (2016) - Published 10 November, 2016

Creating arbitrary quantum vibrational states in a carbon nanotube

Heng Wang and Guido Burkard

Phys. Rev. B 94, 205413 (2016) - Published 10 November, 2016

Due to their small mass and large mechanical stiffness, free-standing carbon nanotubes turn out to be superb high-frequency mechanical resonators that could find applications in mass and force sensing. With resonance frequencies up to the gigahertz regime, one can envision cooling the mechanical motion of such nanotubes to its quantum mechanical ground state at cryogenic temperatures. This opens the possibility to generate highly nonclassical states of the mechanical motion, similar to those created several years ago with electromagnetic radiation in superconducting microwave resonators. Such states are interesting from a fundamental physics point of view, but potentially also for quantum information and sensing applications. While classical activation of a harmonic oscillator will always produce “quasiclassical” coherent states, a necessary ingredient for the production of nonclassical states such as Fock states is a nonlinear element, e.g., superconducting qubits in the case of microwaves. This work predicts that for mechanical oscillations, the spin-orbit coupling of the mechanical motion to a single localized electron spin can do the trick by acting as a nonlinear element for phonons.

Rashba-Dirac cones at the tungsten surface: Insights from a tight-binding model and thin film subband structure

George Kirczenow

Phys. Rev. B 94, 205414 (2016) - Published 10 November, 2016

Proximity-induced spin-valley polarization in silicene or germanene on F-doped WS2

Shahid Sattar, Nirpendra Singh, and Udo Schwingenschlögl

Phys. Rev. B 94, 205415 (2016) - Published 11 November, 2016

Mixed electrical-heat noise spectrum in a quantum dot

Paul Eyméoud and Adeline Crépieux

Phys. Rev. B 94, 205416 (2016) - Published 11 November, 2016

Nonspherical atomic effective pseudopotentials for surface passivation

Anastasia Karpulevich, Hanh Bui, Denis Antonov, Peng Han, and Gabriel Bester

Phys. Rev. B 94, 205417 (2016) - Published 14 November, 2016

Evidence of electronic cloaking from chiral electron transport in bilayer graphene nanostructures

Kyunghoon Lee, Seunghyun Lee, Yun Suk Eo, Cagliyan Kurdak, and Zhaohui Zhong

Phys. Rev. B 94, 205418 (2016) - Published 14 November, 2016

Optical signatures of nonlocal plasmons in graphene

Tobias Wenger, Giovanni Viola, Mikael Fogelström, Philippe Tassin, and Jari Kinaret

Phys. Rev. B 94, 205419 (2016) - Published 14 November, 2016

Surface structure of coherently strained ceria ultrathin films

Yezhou Shi, Kevin H. Stone, Zixuan Guan, Matteo Monti, Chuntian Cao, Farid El Gabaly, William C. Chueh, and Michael F. Toney

Phys. Rev. B 94, 205420 (2016) - Published 14 November, 2016

Entangling distant resonant exchange qubits via circuit quantum electrodynamics

V. Srinivasa, J. M. Taylor, and Charles Tahan

Phys. Rev. B 94, 205421 (2016) - Published 16 November, 2016

Entanglement properties of Floquet-Chern insulators

Daniel J. Yates, Yonah Lemonik, and Aditi Mitra

Phys. Rev. B 94, 205422 (2016) - Published 16 November, 2016

Exciton-phonon relaxation bottleneck and radiative decay of thermal exciton reservoir in two-dimensional materials

A. O. Slobodeniuk and D. M. Basko

Phys. Rev. B 94, 205423 (2016) - Published 17 November, 2016

Quantum interference effects in topological nanowires in a longitudinal magnetic field

Vincent E. Sacksteder, IV and Quansheng Wu

Phys. Rev. B 94, 205424 (2016) - Published 18 November, 2016

Length dependence of the thermal conductance of alkane-based single-molecule junctions: An ab initio study

J. C. Klöckner, M. Bürkle, J. C. Cuevas, and F. Pauly

Phys. Rev. B 94, 205425 (2016) - Published 21 November, 2016

Electric-field tunable Dirac semimetal state in phosphorene thin films

Barun Ghosh, Bahadur Singh, R. Prasad, and Amit Agarwal

Phys. Rev. B 94, 205426 (2016) - Published 21 November, 2016

Feature-rich electronic excitations of silicene in external fields

Jhao-Ying Wu, Szu-Chao Chen, Godfrey Gumbs, and Ming-Fa Lin

Phys. Rev. B 94, 205427 (2016) - Published 21 November, 2016

Spin pumping into two-dimensional electron systems

Takuya Inoue, Gerrit E. W. Bauer, and Kentaro Nomura

Phys. Rev. B 94, 205428 (2016) - Published 23 November, 2016

Photoinduced topological phase transition and spin polarization in a two-dimensional topological insulator

M. N. Chen, W. Su, M. X. Deng, Jiawei Ruan, W. Luo, D. X. Shao, L. Sheng, and D. Y. Xing

Phys. Rev. B 94, 205429 (2016) - Published 23 November, 2016

Nonequilibrium mesoscopic conductance fluctuations as the origin of 1/f noise in epitaxial graphene

C.-C. Kalmbach, F. J. Ahlers, J. Schurr, A. Müller, J. Feilhauer, M. Kruskopf, K. Pierz, F. Hohls, and R. J. Haug

Phys. Rev. B 94, 205430 (2016) - Published 23 November, 2016

Strain-induced quasi-one-dimensional rare-earth silicide structures on Si(111)

F. Timmer, R. Oelke, C. Dues, S. Sanna, W. G. Schmidt, M. Franz, S. Appelfeller, M. Dähne, and J. Wollschläger

Phys. Rev. B 94, 205431 (2016) - Published 28 November, 2016

Nonradiative limitations to plasmon propagation in chains of metallic nanoparticles

Adam Brandstetter-Kunc, Guillaume Weick, Charles A. Downing, Dietmar Weinmann, and Rodolfo A. Jalabert

Phys. Rev. B 94, 205432 (2016) - Published 28 November, 2016

Toroidal eigenmodes in all-dielectric metamolecules

Anna C. Tasolamprou, Odysseas Tsilipakos, Maria Kafesaki, Costas M. Soukoulis, and Eleftherios N. Economou

Phys. Rev. B 94, 205433 (2016) - Published 28 November, 2016

Optical theorem and multipole scattering of light by arbitrarily shaped nanoparticles

Andrey B. Evlyukhin, Tim Fischer, Carsten Reinhardt, and Boris N. Chichkov

Phys. Rev. B 94, 205434 (2016) - Published 28 November, 2016

Ground state properties of electron-hole bilayer: Mass-asymmetric effect

R. O. Sharma, L. K. Saini, and Bhagwati Prasad Bahuguna

Phys. Rev. B 94, 205435 (2016) - Published 28 November, 2016

Electrical control of the RKKY interaction in bilayer graphene

N. Klier, S. Sharma, O. Pankratov, and S. Shallcross

Phys. Rev. B 94, 205436 (2016) - Published 28 November, 2016

Hofstadter butterfly of a quasicrystal

Jean-Noël Fuchs and Julien Vidal

Phys. Rev. B 94, 205437 (2016) - Published 28 November, 2016

Exact formulas for radiative heat transfer between planar bodies under arbitrary temperature profiles: Modified asymptotics and sign-flip transitions

Riccardo Messina, Weiliang Jin, and Alejandro W. Rodriguez

Phys. Rev. B 94, 205438 (2016) - Published 28 November, 2016

Transparency of graphene and other direct-gap two-dimensional materials

Daniel J. Merthe and Vitaly V. Kresin

Phys. Rev. B 94, 205439 (2016) - Published 30 November, 2016

The optical properties of graphene are among its remarkable characteristics. Measurements have found that the opacity of a single graphene layer for infrared and visible light is simply equal to π times the fine-structure constant. Explanations of this beautiful relation have tended to view it as a consequence of the material’s Dirac-like band structure. However, in this paper the authors emphasize that the interband absorption rate must be treated by using the underlying nonrelativistic Hamiltonian, not the quasimomentum state label of the bands. They employ both a straightforward model and a tight-binding calculation to show that the opacity of graphene follows not from its celebrated linear dispersion relation but from the fact that it is a two-dimensional material. The same characteristic is therefore present in semiconductor membranes (as revealed by recent experiments) and other two-dimensional systems. This work focuses attention on the universality that reduced dimensionality bestows on optical absorption.

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