Browse Issues:

HIGHLIGHTED ARTICLES

Neutron-scattering-based evidence for interacting magnetic excitons in LaCoO3

S. El-Khatib, D. Phelan, J. G. Barker, H. Zheng, J. F. Mitchell, and C. Leighton

Phys. Rev. B 92, 060404(R) (2015) - Published 6 August, 2015

For several decades LaCoO3 attracted interest due the unconventional thermally-driven spin-state crossover from a nonmagnetic to paramagnetic state. More recently, it was realized that the “nonmagnetic” ground state harbors some form of magnetism that is likely due to local magnetic entities forming at oxygen vacancies. Such entities dubbed “magnetic excitons” were predicted in 1996, with some evidence for their existence emerging around 2005 from muon spin relaxation. In this Rapid Communication the authors provide the first scattering-based evidence for spin excitons, direct information on the size and density of the excitons, as well as their interactions. The form of the scattering is also direct proof of a bulk 3D ensemble of these excitons.

Surface electronic structure and isotropic superconducting gap in (Li0.8Fe0.2)OHFeSe

X. H. Niu, R. Peng, H. C. Xu, Y. J. Yan, J. Jiang, D. F. Xu, T. L. Yu, Q. Song, Z. C. Huang, Y. X. Wang, B. P. Xie, X. F. Lu, N. Z. Wang, X. H. Chen, Z. Sun, and D. L. Feng

Phys. Rev. B 92, 060504(R) (2015) - Published 18 August, 2015

To understand the pairing symmetry and superconducting transition temperature in heavily electron-doped iron-based superconductors, it is important to study more of these materials, especially ones with decent stability in air and without phase separation. Here, angle-resolved photoemission spectroscopy probes the surface electronic structure and superconducting gap in the new superconductor (Li0.8Fe0.2)OHFeSe, which shows a Tc as high as 40 K.

Raman study of lattice dynamics in the Weyl semimetal TaAs

H. W. Liu, P. Richard, Z. D. Song, L. X. Zhao, Z. Fang, G.-F. Chen, and H. Ding

Phys. Rev. B 92, 064302 (2015) - Published 6 August, 2015

The shift of attention in topological matter is quickly shifting from topological insulators to Weyl semimetals after the recent much publicized theoretical prediction and experimental verification in TaAs. Reported here is the first Raman study of a Weyl semimetal. As with topological insulators, Raman phonons will be routinely used as probes to characterize the quality and the conditions of samples and devices. The study here identifies all the optic phonon modes and finds some additional interesting features, and should provide a good guide for future work.

Schwinger boson mean field perspective on emergent spins in diluted Heisenberg antiferromagnets

Shivam Ghosh, Hitesh J. Changlani, and Christopher L. Henley

Phys. Rev. B 92, 064401 (2015) - Published 3 August, 2015

The authors study the diluted spin-half Heisenberg model near the percolation threshold using Schwinger boson mean field theory (SBMFT). They show how SBMFT predicts the emergence of effective local spin degrees of freedom. They demonstrate that SBMFT applied to dilute spin systems is qualitatively accurate by also performing DMRG computations.

Direct and inverse spin-orbit torques

Frank Freimuth, Stefan Blügel, and Yuriy Mokrousov

Phys. Rev. B 92, 064415 (2015) - Published 12 August, 2015

The connection between the spin-orbit torque (SOT) and inverse spin-orbit torque (ISOT) in systems without inversion symmetry is studied by combining phenomenological models, diffusion theory, and density functional theory. Using this, DFT calculations on Co/Pt(111) magnetic bilayers expose the mechanisms underlying SOT and ISOT and highlight their reciprocity on the microscopic level.

Spin dynamics in the presence of competing ferromagnetic and antiferromagnetic correlations in Yb2Ti2O7

J. Robert, E. Lhotel, G. Remenyi, S. Sahling, I. Mirebeau, C. Decorse, B. Canals, and S. Petit

Phys. Rev. B 92, 064425 (2015) - Published 31 August, 2015

The authors study the competing ferromagnetic (FM) and antiferromagnetic (AFM) interactions in the quantum spin ice candidate Yb2Ti2O7 using various probes and techniques. They show that it produces a continuum of broad excitations, where the coexistence of different magnetic characteristics indicates the compound lies at the FM and AFM phase boundary for the material. This suggests that the competition of states produces an unconventional ground state through quantum fluctuations.

Dependence of the efficiency of spin Hall torque on the transparency of Pt/ferromagnetic layer interfaces

Chi-Feng Pai, Yongxi Ou, Luis Henrique Vilela-Leão, D. C. Ralph, and R. A. Buhrman

Phys. Rev. B 92, 064426 (2015) - Published 31 August, 2015

A systematic study of both the harmonic response and spin torque ferromagnetic resonance demonstrates that the spin Hall torque efficiency in a Pt-ferromagnetic (FM) structure is strongly dependent on the interface properties and the choice of the ferromagnetic materials, a key point that has until now not been made in spin Hall studies.

(Li0.84Fe0.16)OHFe0.98Se superconductor: Ion-exchange synthesis of large single-crystal and highly two-dimensional electron properties

Xiaoli Dong, Kui Jin, Dongna Yuan, Huaxue Zhou, Jie Yuan, Yulong Huang, Wei Hua, Junliang Sun, Ping Zheng, Wei Hu, Yiyuan Mao, Mingwei Ma, Guangming Zhang, Fang Zhou, and Zhongxian Zhao

Phys. Rev. B 92, 064515 (2015) - Published 24 August, 2015

Using a novel hydrothermal ion-exchange technique, large and high-quality optimally doped single crystals of the new superconductor (Li0.84Fe0.16)OHFe0.98Se have been successfully synthesized for the first time. Thanks to these single-crystal samples, the anomalous normal-state properties of a linear in-plane electric resistivity, a dip in the Hall coefficient, and a linear magnetic susceptibility are revealed for the first time.

RAPID COMMUNICATIONS

Structure, structural phase transitions, mechanical properties, defects

Sound velocity in shock compressed molybdenum obtained by ab initio molecular dynamics

T. Lukinov, S. I. Simak, and A. B. Belonoshko

Phys. Rev. B 92, 060101(R) (2015) - Published 24 August, 2015

Homogeneous switching mechanism in pure polyvinylidene fluoride ultrathin films

B. B. Tian, L. F. Chen, Y. Liu, X. F. Bai, J. L. Wang, Sh. Sun, G. L. Yuan, J. L. Sun, B. Dkhil, X. J. Meng, and J. H. Chu

Phys. Rev. B 92, 060102(R) (2015) - Published 26 August, 2015

Dynamics, dynamical systems, lattice effects

Optimizing a dynamical decoupling protocol for solid-state electronic spin ensembles in diamond

D. Farfurnik, A. Jarmola, L. M. Pham, Z. H. Wang, V. V. Dobrovitski, R. L. Walsworth, D. Budker, and N. Bar-Gill

Phys. Rev. B 92, 060301(R) (2015) - Published 24 August, 2015

Magnetism

Quantum pressure and chemical bonding: Influence of magnetic fields on electron localization

Jianmin Tao, Shi Liu, Fan Zheng, and Andrew M. Rappe

Phys. Rev. B 92, 060401(R) (2015) - Published 3 August, 2015

Magnetotransport in metal/insulating-ferromagnet heterostructures: Spin Hall magnetoresistance or magnetic proximity effect

X. Zhou, L. Ma, Z. Shi, W. J. Fan, Jian-Guo Zheng, R. F. L. Evans, and S. M. Zhou

Phys. Rev. B 92, 060402(R) (2015) - Published 4 August, 2015

Giant forward-scattering asymmetry and anomalous tunnel Hall effect at spin-orbit-split and exchange-split interfaces

T. Huong Dang, H. Jaffrès, T. L. Hoai Nguyen, and H.-J. Drouhin

Phys. Rev. B 92, 060403(R) (2015) - Published 5 August, 2015

Neutron-scattering-based evidence for interacting magnetic excitons in LaCoO3

S. El-Khatib, D. Phelan, J. G. Barker, H. Zheng, J. F. Mitchell, and C. Leighton

Phys. Rev. B 92, 060404(R) (2015) - Published 6 August, 2015

For several decades LaCoO3 attracted interest due the unconventional thermally-driven spin-state crossover from a nonmagnetic to paramagnetic state. More recently, it was realized that the “nonmagnetic” ground state harbors some form of magnetism that is likely due to local magnetic entities forming at oxygen vacancies. Such entities dubbed “magnetic excitons” were predicted in 1996, with some evidence for their existence emerging around 2005 from muon spin relaxation. In this Rapid Communication the authors provide the first scattering-based evidence for spin excitons, direct information on the size and density of the excitons, as well as their interactions. The form of the scattering is also direct proof of a bulk 3D ensemble of these excitons.

Suppression of the impurity-induced local magnetism by the opening of a spin pseudogap in Ni-doped Sr2CuO3

Yannic Utz, Franziska Hammerath, Satoshi Nishimoto, Christian Hess, Neela Sekhar Beesetty, Romuald Saint-Martin, Alexandre Revcolevschi, Bernd Büchner, and Hans-Joachim Grafe

Phys. Rev. B 92, 060405(R) (2015) - Published 10 August, 2015

Single-photon level study of microwave properties of lithium niobate at millikelvin temperatures

Maxim Goryachev, Nikita Kostylev, and Michael E. Tobar

Phys. Rev. B 92, 060406(R) (2015) - Published 10 August, 2015

Gapless chiral spin liquid in a kagome Heisenberg model

Samuel Bieri, Laura Messio, Bernard Bernu, and Claire Lhuillier

Phys. Rev. B 92, 060407(R) (2015) - Published 14 August, 2015

Giant magnetic field dependence of the coupling between spin chains in BaCo2V2O8

M. Klanjšek, M. Horvatić, S. Krämer, S. Mukhopadhyay, H. Mayaffre, C. Berthier, E. Canévet, B. Grenier, P. Lejay, and E. Orignac

Phys. Rev. B 92, 060408(R) (2015) - Published 17 August, 2015

Spin current generation and magnetic response in carbon nanotubes by the twisting phonon mode

Masato Hamada, Takehito Yokoyama, and Shuichi Murakami

Phys. Rev. B 92, 060409(R) (2015) - Published 21 August, 2015

Pressure-induced commensurate phase with potential giant polarization in YMn2O5

M. Deutsch, T. C. Hansen, M. T. Fernandez-Diaz, A. Forget, D. Colson, F. Porcher, and I. Mirebeau

Phys. Rev. B 92, 060410(R) (2015) - Published 21 August, 2015

Current-induced fingering instability in magnetic domain walls

J. Gorchon, J. Curiale, A. Cebers, A. Lemaître, N. Vernier, M. Plapp, and V. Jeudy

Phys. Rev. B 92, 060411(R) (2015) - Published 25 August, 2015

Critical properties of coupled anisotropic Haldane spin chains in a magnetic field

A. K. Bera, B. Lake, A. T. M. N. Islam, and A. Schneidewind

Phys. Rev. B 92, 060412(R) (2015) - Published 25 August, 2015

Broken vertex symmetry and finite zero-point entropy in the artificial square ice ground state

Sebastian Gliga, Attila Kákay, Laura J. Heyderman, Riccardo Hertel, and Olle G. Heinonen

Phys. Rev. B 92, 060413(R) (2015) - Published 26 August, 2015

Superfluidity and superconductivity

Inverse proximity effect at superconductor-ferromagnet interfaces: Evidence for induced triplet pairing in the superconductor

Y. Kalcheim, O. Millo, A. Di Bernardo, A. Pal, and J. W. A. Robinson

Phys. Rev. B 92, 060501(R) (2015) - Published 11 August, 2015

Observation of a Raman-active phonon with Fano line shape in the quasi-one-dimensional superconductor K2Cr3As3

W.-L. Zhang, H. Li, Dai Xia, H. W. Liu, Y.-G. Shi, J. L. Luo, Jiangping Hu, P. Richard, and H. Ding

Phys. Rev. B 92, 060502(R) (2015) - Published 13 August, 2015

Josephson effect through magnetic skyrmions

Takehito Yokoyama and Jacob Linder

Phys. Rev. B 92, 060503(R) (2015) - Published 17 August, 2015

Surface electronic structure and isotropic superconducting gap in (Li0.8Fe0.2)OHFeSe

X. H. Niu, R. Peng, H. C. Xu, Y. J. Yan, J. Jiang, D. F. Xu, T. L. Yu, Q. Song, Z. C. Huang, Y. X. Wang, B. P. Xie, X. F. Lu, N. Z. Wang, X. H. Chen, Z. Sun, and D. L. Feng

Phys. Rev. B 92, 060504(R) (2015) - Published 18 August, 2015

To understand the pairing symmetry and superconducting transition temperature in heavily electron-doped iron-based superconductors, it is important to study more of these materials, especially ones with decent stability in air and without phase separation. Here, angle-resolved photoemission spectroscopy probes the surface electronic structure and superconducting gap in the new superconductor (Li0.8Fe0.2)OHFeSe, which shows a Tc as high as 40 K.

Emergence of an incipient ordering mode in FeSe

Sahana Rößler, Cevriye Koz, Lin Jiao, Ulrich K. Rößler, Frank Steglich, Ulrich Schwarz, and Steffen Wirth

Phys. Rev. B 92, 060505(R) (2015) - Published 20 August, 2015

Persisting Meissner state and incommensurate phases of hard-core boson ladders in a flux

M. Di Dio, S. De Palo, E. Orignac, R. Citro, and M.-L. Chiofalo

Phys. Rev. B 92, 060506(R) (2015) - Published 26 August, 2015

Strong coupling critique of spin fluctuation driven charge order in underdoped cuprates

Vivek Mishra and M. R. Norman

Phys. Rev. B 92, 060507(R) (2015) - Published 27 August, 2015

Influence of bonding on superconductivity in high-pressure hydrides

Christoph Heil and Lilia Boeri

Phys. Rev. B 92, 060508(R) (2015) - Published 27 August, 2015

Maximum entropy analytic continuation for spectral functions with nonpositive spectral weight

A. Reymbaut, D. Bergeron, and A.-M. S. Tremblay

Phys. Rev. B 92, 060509(R) (2015) - Published 27 August, 2015

Neutron investigation of the magnetic scattering in an iron-based ferromagnetic superconductor

Jeffrey W. Lynn, Xiuquan Zhou, Christopher K. H. Borg, Shanta R. Saha, Johnpierre Paglione, and Efrain E. Rodriguez

Phys. Rev. B 92, 060510(R) (2015) - Published 31 August, 2015

ARTICLES

Structure, structural phase transitions, mechanical properties, defects

Depolarizing field in ultrathin electrocalorics

E. Glazkova, C.-M. Chang, S. Lisenkov, B. K. Mani, and I. Ponomareva

Phys. Rev. B 92, 064101 (2015) - Published 5 August, 2015

Pressure-temperature phase diagram of multiferroic EuTiO3

P. Parisiades, E. Liarokapis, J. Köhler, A. Bussmann-Holder, and M. Mezouar

Phys. Rev. B 92, 064102 (2015) - Published 6 August, 2015

First-principles calculation of defect free energies: General aspects illustrated in the case of bcc Fe

D. Murali, M. Posselt, and M. Schiwarth

Phys. Rev. B 92, 064103 (2015) - Published 6 August, 2015

Identification and magneto-optical properties of the NV center in 4HSiC

H. J. von Bardeleben, J. L. Cantin, E. Rauls, and U. Gerstmann

Phys. Rev. B 92, 064104 (2015) - Published 6 August, 2015

Strain and oxygen vacancy ordering in SrTiO3: Diffuse x-ray scattering studies

Yongsam Kim, Ankit S. Disa, Timur E. Babakol, Xinyue Fang, and Joel D. Brock

Phys. Rev. B 92, 064105 (2015) - Published 7 August, 2015

From generalized stacking fault energies to dislocation properties: Five-energy-point approach and solid solution effects in magnesium

Zongrui Pei, Duancheng Ma, Martin Friák, Bob Svendsen, Dierk Raabe, and Jörg Neugebauer

Phys. Rev. B 92, 064107 (2015) - Published 11 August, 2015

Pressure-induced transition in the multiferroic CoCr2O4 spinel

I. Efthimiopoulos, Z. T. Y. Liu, S. V. Khare, P. Sarin, T. Lochbiler, V. Tsurkan, A. Loidl, D. Popov, and Y. Wang

Phys. Rev. B 92, 064108 (2015) - Published 12 August, 2015

Phase boundary of θ phase of solid oxygen in ultrahigh magnetic fields

T. Nomura, Y. H. Matsuda, S. Takeyama, A. Matsuo, K. Kindo, and T. C. Kobayashi

Phys. Rev. B 92, 064109 (2015) - Published 13 August, 2015

Structural transformations of Li2C2 at high pressures

Ilias Efthimiopoulos, Daryn E. Benson, Sumit Konar, Johanna Nylén, Gunnar Svensson, Ulrich Häussermann, Stefan Liebig, Uwe Ruschewitz, Grigory V. Vazhenin, Ingo Loa, Michael Hanfland, and Karl Syassen

Phys. Rev. B 92, 064111 (2015) - Published 19 August, 2015

Chainlike transitions in Wigner crystals: Sequential versus nonsequential

J. E. Galván-Moya, V. R. Misko, and F. M. Peeters

Phys. Rev. B 92, 064112 (2015) - Published 21 August, 2015

Sharp interface model of creep deformation in crystalline solids

Y. Mishin, G. B. McFadden, R. F. Sekerka, and W. J. Boettinger

Phys. Rev. B 92, 064113 (2015) - Published 24 August, 2015

Structural phase transitions of phosphorene induced by applied strains

Ting Hu and Jinming Dong

Phys. Rev. B 92, 064114 (2015) - Published 25 August, 2015

Inhomogeneous, disordered, and partially ordered systems

Density of states of two-dimensional systems with long-range logarithmic interactions

Andrés M. Somoza, Miguel Ortuño, Tatyana I. Baturina, and Valerii M. Vinokur

Phys. Rev. B 92, 064201 (2015) - Published 3 August, 2015

Glass transition and positional ordering of hydrogen in bulk and nanocrystalline palladium

Hiroshi Akiba, Hirokazu Kobayashi, Hiroshi Kitagawa, Maiko Kofu, and Osamu Yamamuro

Phys. Rev. B 92, 064202 (2015) - Published 21 August, 2015

Many-body mobility edge due to symmetry-constrained dynamics and strong interactions

Ian Mondragon-Shem, Arijeet Pal, Taylor L. Hughes, and Chris R. Laumann

Phys. Rev. B 92, 064203 (2015) - Published 24 August, 2015

Germanene-like defects in amorphous germanium revealed by three-dimensional visualization of high-resolution pair-distribution functions

B. Tomberli, A. Rahemtulla, E. Kim, S. Roorda, and S. Kycia

Phys. Rev. B 92, 064204 (2015) - Published 25 August, 2015

Dynamics, dynamical systems, lattice effects

Quasiparticle properties of the nonlinear Holstein model at finite doping and temperature

Shaozhi Li, E. A. Nowadnick, and S. Johnston

Phys. Rev. B 92, 064301 (2015) - Published 3 August, 2015

Raman study of lattice dynamics in the Weyl semimetal TaAs

H. W. Liu, P. Richard, Z. D. Song, L. X. Zhao, Z. Fang, G.-F. Chen, and H. Ding

Phys. Rev. B 92, 064302 (2015) - Published 6 August, 2015

The shift of attention in topological matter is quickly shifting from topological insulators to Weyl semimetals after the recent much publicized theoretical prediction and experimental verification in TaAs. Reported here is the first Raman study of a Weyl semimetal. As with topological insulators, Raman phonons will be routinely used as probes to characterize the quality and the conditions of samples and devices. The study here identifies all the optic phonon modes and finds some additional interesting features, and should provide a good guide for future work.

Anharmonic properties in Mg2X (X=C,Si,Ge,Sn,Pb) from first-principles calculations

Aleksandr Chernatynskiy and Simon R. Phillpot

Phys. Rev. B 92, 064303 (2015) - Published 7 August, 2015

Incoherent excitation and switching of spin states in exciton-polariton condensates

G. Li, T. C. H. Liew, O. A. Egorov, and E. A. Ostrovskaya

Phys. Rev. B 92, 064304 (2015) - Published 21 August, 2015

Coherent lattice dynamics in topological insulator Bi2Te3 probed with time-resolved optical second-harmonic generation

Anton Y. Bykov, Tatiana V. Murzina, Nicolas Olivier, Gregory A. Wurtz, and Anatoly V. Zayats

Phys. Rev. B 92, 064305 (2015) - Published 28 August, 2015

Dark solitons and vortices in the intrinsic bistability regime in exciton polariton condensates

A. V. Yulin, D. V. Skryabin, and A. V. Gorbach

Phys. Rev. B 92, 064306 (2015) - Published 31 August, 2015

Magnetism

Schwinger boson mean field perspective on emergent spins in diluted Heisenberg antiferromagnets

Shivam Ghosh, Hitesh J. Changlani, and Christopher L. Henley

Phys. Rev. B 92, 064401 (2015) - Published 3 August, 2015

The authors study the diluted spin-half Heisenberg model near the percolation threshold using Schwinger boson mean field theory (SBMFT). They show how SBMFT predicts the emergence of effective local spin degrees of freedom. They demonstrate that SBMFT applied to dilute spin systems is qualitatively accurate by also performing DMRG computations.

Thickness-dependent magnetic properties and strain-induced orbital magnetic moment in SrRuO3 thin films

K. Ishigami, K. Yoshimatsu, D. Toyota, M. Takizawa, T. Yoshida, G. Shibata, T. Harano, Y. Takahashi, T. Kadono, V. K. Verma, V. R. Singh, Y. Takeda, T. Okane, Y. Saitoh, H. Yamagami, T. Koide, M. Oshima, H. Kumigashira, and A. Fujimori

Phys. Rev. B 92, 064402 (2015) - Published 3 August, 2015

Ultrafast magnetization dynamics: Microscopic electronic configurations and ultrafast spectroscopy

I. L. M. Locht, I. Di Marco, S. Garnerone, A. Delin, and M. Battiato

Phys. Rev. B 92, 064403 (2015) - Published 3 August, 2015

Dynamics of photoinduced change of magnetoanisotropy parameter in orthoferrites probed with terahertz excited coherent spin precession

Keita Yamaguchi, Takayuki Kurihara, Hiroshi Watanabe, Makoto Nakajima, and Tohru Suemoto

Phys. Rev. B 92, 064404 (2015) - Published 3 August, 2015

Thermal vector potential theory of magnon-driven magnetization dynamics

Gen Tatara

Phys. Rev. B 92, 064405 (2015) - Published 3 August, 2015

Fluctuation relations for spin currents

Chenjie Wang and D. E. Feldman

Phys. Rev. B 92, 064406 (2015) - Published 4 August, 2015

Ferrimagnetic resonance and magnetoelastic excitations in magnetoelectric hexaferrites

Carmine Vittoria

Phys. Rev. B 92, 064407 (2015) - Published 4 August, 2015

Structural anomalies and short-range magnetic correlations in the orbitally degenerate system Sr2VO4

Ichihiro Yamauchi, Kazuhiro Nawa, Masatoshi Hiraishi, Masanori Miyazaki, Akihiro Koda, Kenji M. Kojima, Ryosuke Kadono, Hironori Nakao, Reiji Kumai, Youichi Murakami, Hiroaki Ueda, Kazuyoshi Yoshimura, and Masashi Takigawa

Phys. Rev. B 92, 064408 (2015) - Published 5 August, 2015

β-detected NMR spin relaxation in a thin film heterostructure of ferromagnetic EuO

W. A. MacFarlane, Q. Song, N. J. C. Ingle, K. H. Chow, M. Egilmez, I. Fan, M. D. Hossain, R. F. Kiefl, C. D. P. Levy, G. D. Morris, T. J. Parolin, M. R. Pearson, H. Saadaoui, Z. Salman, and D. Wang

Phys. Rev. B 92, 064409 (2015) - Published 6 August, 2015

Surface-termination-dependent magnetism and strong perpendicular magnetocrystalline anisotropy of an FeRh(001) thin film

Soyoung Jekal, S. H. Rhim, S. C. Hong, Won-joon Son, and A. B. Shick

Phys. Rev. B 92, 064410 (2015) - Published 6 August, 2015

Intracluster interactions in butterfly {Fe3LnO2} molecules with the non-Kramers ions Tb(III) and Ho(III)

L. Badía-Romano, J. Rubín, F. Bartolomé, J. Bartolomé, J. Luzón, D. Prodius, C. Turta, V. Mereacre, F. Wilhelm, and A. Rogalev

Phys. Rev. B 92, 064411 (2015) - Published 6 August, 2015

Skyrmion dynamics in chiral ferromagnets

Stavros Komineas and Nikos Papanicolaou

Phys. Rev. B 92, 064412 (2015) - Published 10 August, 2015

Critical suppression of spin Seebeck effect by magnetic fields

Takashi Kikkawa, Ken-ichi Uchida, Shunsuke Daimon, Zhiyong Qiu, Yuki Shiomi, and Eiji Saitoh

Phys. Rev. B 92, 064413 (2015) - Published 10 August, 2015

Low dimensionalization of magnetic ordering in Sr2VO4 by hydride ion substitution

Joonho Bang, Satoru Matsuishi, Sachiko Maki, Jun-ichi Yamaura, Masatoshi Hiraishi, Soshi Takeshita, Ichihiro Yamauchi, Kenji M. Kojima, and Hideo Hosono

Phys. Rev. B 92, 064414 (2015) - Published 11 August, 2015

Direct and inverse spin-orbit torques

Frank Freimuth, Stefan Blügel, and Yuriy Mokrousov

Phys. Rev. B 92, 064415 (2015) - Published 12 August, 2015

The connection between the spin-orbit torque (SOT) and inverse spin-orbit torque (ISOT) in systems without inversion symmetry is studied by combining phenomenological models, diffusion theory, and density functional theory. Using this, DFT calculations on Co/Pt(111) magnetic bilayers expose the mechanisms underlying SOT and ISOT and highlight their reciprocity on the microscopic level.

Spin-wave dynamics in permalloy/cobalt magnonic crystals in the presence of a nonmagnetic spacer

P. Malagò, L. Giovannini, R. Zivieri, P. Gruszecki, and M. Krawczyk

Phys. Rev. B 92, 064416 (2015) - Published 12 August, 2015

Magnetism in tetragonal manganese-rich Heusler compounds

Lukas Wollmann, Stanislav Chadov, Jürgen Kübler, and Claudia Felser

Phys. Rev. B 92, 064417 (2015) - Published 18 August, 2015

Measuring acoustic mode resonance alone as a sensitive technique to extract antiferromagnetic coupling strength

Yajun Wei, Peter Svedlindh, Mikhail Kostylev, Mojtaba Ranjbar, Randy K. Dumas, and Johan Åkerman

Phys. Rev. B 92, 064418 (2015) - Published 24 August, 2015

Universal scaling for a quantum discontinuity critical point and quantum quenches

Sei Suzuki and Amit Dutta

Phys. Rev. B 92, 064419 (2015) - Published 24 August, 2015

Shape-dependent exchange bias effect in magnetic nanoparticles with core-shell morphology

V. Dimitriadis, D. Kechrakos, O. Chubykalo-Fesenko, and V. Tsiantos

Phys. Rev. B 92, 064420 (2015) - Published 24 August, 2015

Electronic and magnetic effects of a stacking fault in cobalt nanoscale islands on the Ag(111) surface

Keiji Doi, Emi Minamitani, Shunji Yamamoto, Ryuichi Arafune, Yasuo Yoshida, Satoshi Watanabe, and Yukio Hasegawa

Phys. Rev. B 92, 064421 (2015) - Published 24 August, 2015

Impact of core-shell dipolar interaction on magnetic phases of spherical core-shell nanoparticles

F. C. Medeiros Filho, L. L. Oliveira, S. S. Pedrosa, G. O. G. Rebouças, A. S. Carriço, and Ana L. Dantas

Phys. Rev. B 92, 064422 (2015) - Published 26 August, 2015

Observation of the dynamic modes of a magnetic antivortex using Brillouin light scattering

Grant A. Riley, H. J. Jason Liu, Martin A. Asmat-Uceda, Arabinda Haldar, and Kristen S. Buchanan

Phys. Rev. B 92, 064423 (2015) - Published 26 August, 2015

Thermodynamic observables of Mn12-acetate calculated for the full spin Hamiltonian

Oliver Hanebaum and Jürgen Schnack

Phys. Rev. B 92, 064424 (2015) - Published 27 August, 2015

Spin dynamics in the presence of competing ferromagnetic and antiferromagnetic correlations in Yb2Ti2O7

J. Robert, E. Lhotel, G. Remenyi, S. Sahling, I. Mirebeau, C. Decorse, B. Canals, and S. Petit

Phys. Rev. B 92, 064425 (2015) - Published 31 August, 2015

The authors study the competing ferromagnetic (FM) and antiferromagnetic (AFM) interactions in the quantum spin ice candidate Yb2Ti2O7 using various probes and techniques. They show that it produces a continuum of broad excitations, where the coexistence of different magnetic characteristics indicates the compound lies at the FM and AFM phase boundary for the material. This suggests that the competition of states produces an unconventional ground state through quantum fluctuations.

Dependence of the efficiency of spin Hall torque on the transparency of Pt/ferromagnetic layer interfaces

Chi-Feng Pai, Yongxi Ou, Luis Henrique Vilela-Leão, D. C. Ralph, and R. A. Buhrman

Phys. Rev. B 92, 064426 (2015) - Published 31 August, 2015

A systematic study of both the harmonic response and spin torque ferromagnetic resonance demonstrates that the spin Hall torque efficiency in a Pt-ferromagnetic (FM) structure is strongly dependent on the interface properties and the choice of the ferromagnetic materials, a key point that has until now not been made in spin Hall studies.

Superfluidity and superconductivity

Relativistic motion with superconducting qubits

S. Felicetti, C. Sabín, I. Fuentes, L. Lamata, G. Romero, and E. Solano

Phys. Rev. B 92, 064501 (2015) - Published 3 August, 2015

Doping dependence of the critical fluctuation regime in the Fe-based superconductor Ba1xKxFe2As2

Jianqiang Hou, Philipp Burger, Huen Kit Mak, Frédéric Hardy, Thomas Wolf, Christoph Meingast, and Rolf Lortz

Phys. Rev. B 92, 064502 (2015) - Published 4 August, 2015

Superconducting gap renormalization around two magnetic impurities: From Shiba to Andreev bound states

Tobias Meng, Jelena Klinovaja, Silas Hoffman, Pascal Simon, and Daniel Loss

Phys. Rev. B 92, 064503 (2015) - Published 6 August, 2015

Quasiparticle recombination in hotspots in superconducting current-carrying nanowires

A. G. Kozorezov, C. Lambert, F. Marsili, M. J. Stevens, V. B. Verma, J. A. Stern, R. Horansky, S. Dyer, S. Duff, D. P. Pappas, A. Lita, M. D. Shaw, R. P. Mirin, and Sae Woo Nam

Phys. Rev. B 92, 064504 (2015) - Published 6 August, 2015

High-temperature superconductivity in heavily N- or B-doped graphene

Jian Zhou, Qiang Sun, Qian Wang, and Puru Jena

Phys. Rev. B 92, 064505 (2015) - Published 7 August, 2015

Physical realization of the generalized fully frustrated XY model in an array of SFS junctions

S. E. Korshunov

Phys. Rev. B 92, 064506 (2015) - Published 10 August, 2015

Fragile structural transition in Mo3Sb7

J.-Q. Yan, M. A. McGuire, A. F. May, D. Parker, D. G. Mandrus, and B. C. Sales

Phys. Rev. B 92, 064507 (2015) - Published 10 August, 2015

Theory of Anderson pseudospin resonance with Higgs mode in superconductors

Naoto Tsuji and Hideo Aoki

Phys. Rev. B 92, 064508 (2015) - Published 11 August, 2015

Deformed aerogels in the superfluid He3

I. A. Fomin and E. V. Surovtsev

Phys. Rev. B 92, 064509 (2015) - Published 11 August, 2015

Superfluidity, BEC, and dimensions of liquid He4 in nanopores

L. Vranješ Markić and H. R. Glyde

Phys. Rev. B 92, 064510 (2015) - Published 12 August, 2015

Local spin-density-wave order inside vortex cores in multiband superconductors

Vivek Mishra and Alexei E. Koshelev

Phys. Rev. B 92, 064511 (2015) - Published 13 August, 2015

Amplitude, density, and current correlations of strongly disordered superconductors

G. Seibold, L. Benfatto, C. Castellani, and J. Lorenzana

Phys. Rev. B 92, 064512 (2015) - Published 17 August, 2015

Influence of the boundary conditions on the current flow pattern along a superconducting wire

Jorge Berger

Phys. Rev. B 92, 064513 (2015) - Published 17 August, 2015

Tunneling and electronic structure of the two-gap superconductor MgB2

J. A. Silva-Guillén, Y. Noat, T. Cren, W. Sacks, E. Canadell, and P. Ordejón

Phys. Rev. B 92, 064514 (2015) - Published 20 August, 2015

(Li0.84Fe0.16)OHFe0.98Se superconductor: Ion-exchange synthesis of large single-crystal and highly two-dimensional electron properties

Xiaoli Dong, Kui Jin, Dongna Yuan, Huaxue Zhou, Jie Yuan, Yulong Huang, Wei Hua, Junliang Sun, Ping Zheng, Wei Hu, Yiyuan Mao, Mingwei Ma, Guangming Zhang, Fang Zhou, and Zhongxian Zhao

Phys. Rev. B 92, 064515 (2015) - Published 24 August, 2015

Using a novel hydrothermal ion-exchange technique, large and high-quality optimally doped single crystals of the new superconductor (Li0.84Fe0.16)OHFe0.98Se have been successfully synthesized for the first time. Thanks to these single-crystal samples, the anomalous normal-state properties of a linear in-plane electric resistivity, a dip in the Hall coefficient, and a linear magnetic susceptibility are revealed for the first time.

Signatures of quantum phase transitions in the dynamic response of fluxonium qubit chains

Hendrik Meier, R. T. Brierley, Angela Kou, S. M. Girvin, and Leonid I. Glazman

Phys. Rev. B 92, 064516 (2015) - Published 24 August, 2015

Magnetic excitations and phonons simultaneously studied by resonant inelastic x-ray scattering in optimally doped Bi1.5Pb0.55Sr1.6La0.4CuO6+δ

Y. Y. Peng, M. Hashimoto, M. Moretti Sala, A. Amorese, N. B. Brookes, G. Dellea, W.-S. Lee, M. Minola, T. Schmitt, Y. Yoshida, K.-J. Zhou, H. Eisaki, T. P. Devereaux, Z.-X. Shen, L. Braicovich, and G. Ghiringhelli

Phys. Rev. B 92, 064517 (2015) - Published 24 August, 2015

Magnification of signatures of a topological phase transition by quantum zero point motion

Pedro L. e S. Lopes and Pouyan Ghaemi

Phys. Rev. B 92, 064518 (2015) - Published 24 August, 2015

Visualization of viscous and quantum flows of liquid He4 due to an oscillating cylinder of rectangular cross section

D. Duda, P. Švančara, M. La Mantia, M. Rotter, and L. Skrbek

Phys. Rev. B 92, 064519 (2015) - Published 25 August, 2015

Chiral topological superconductor and half-integer conductance plateau from quantum anomalous Hall plateau transition

Jing Wang, Quan Zhou, Biao Lian, and Shou-Cheng Zhang

Phys. Rev. B 92, 064520 (2015) - Published 31 August, 2015

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