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HIGHLIGHTED ARTICLES

Instability of j=32 Bogoliubov Fermi surfaces

Hanbit Oh and Eun-Gook Moon

Phys. Rev. B 102, 020501(R) (2020) - Published 6 July, 2020

There has been much recent interest in exotic superconductivity involving a Fermi surface of Bogoliubov quasiparticles, the so-called Bogoliubov Fermi surface (BG-FS). Here, the authors prove that a centrosymmetric BG-FS becomes unstable under a pairing formation of Bogoliubov quasiparticles. They also prove that the Fermi surface survives even under this instability, in stark contrast to the Bardeen-Cooper-Schrieffer mechanism of superconductivity. This work opens up new possibilities for competing orders in new topological materials, such as FeSe and Sr2RuO4, which may help in the search for exotic superconductivity.

Fundamental difference in the electronic reconstruction of infinite-layer versus perovskite neodymium nickelate films on SrTiO3(001)

Benjamin Geisler and Rossitza Pentcheva

Phys. Rev. B 102, 020502(R) (2020) - Published 8 July, 2020

The discovery of superconductivity in a noncuprate NdNiO2 film on SrTiO3(001) has raised significant interest, though its origin is so far elusive. Since the bulk compound shows no superconductivity, here the authors focus on the role of the film geometry and surface and interface from first principles. A fundamentally distinct electronic reconstruction is found for the infinite layer, as opposed to perovskite films, involving the emergence of an interfacial two-dimensional electron gas and a concomitant depletion of the self-doping Nd 5d states, rendering cupratelike behavior.

Time-reversal symmetry breaking in the noncentrosymmetric Zr3Ir superconductor

T. Shang, S. K. Ghosh, J. Z. Zhao, L.-J. Chang, C. Baines, M. K. Lee, D. J. Gawryluk, M. Shi, M. Medarde, J. Quintanilla, and T. Shiroka

Phys. Rev. B 102, 020503(R) (2020) - Published 17 July, 2020

The Zr3Ir superconductor exhibits the coexistence of two exotic, and normally distinct, features: mixed singlet-triplet pairing and broken time-reversal symmetry. Mixed singlet-triplet pairing can take place in superconductors whose crystal lattices lack inversion symmetry. This relativistic effect, which does not require the breaking of additional symmetries, nor an unconventional pairing mechanism, is often quite small. Broken time-reversal symmetry, on the other hand, means that the superconducting state is magnetic and necessitates an unconventional pairing mechanism. The coexistence of these two phenomena makes Zr3Ir a very unusual material, opening up new perspectives for their understanding.

Field-induced reorientation of helimagnetic order in Cu2OSeO3 probed by magnetic force microscopy

Peter Milde, Laura Köhler, Erik Neuber, Philipp Ritzinger, Markus Garst, Andreas Bauer, Christian Pfleiderer, Helmuth Berger, and Lukas M. Eng

Phys. Rev. B 102, 024426 (2020) - Published 17 July, 2020

Cu2OSeO3 is an insulating skyrmion host material with a magnetoelectric coupling giving rise to electric polarization. Using magnetic force microscopy on the surface of a bulk single crystal, the authors study here the helical real-space spin structure and its reorientation under applied magnetic field. Using Kelvin probe force microscopy, they also measure the field dependency of the electric polarization originating in this reorientation process. An effective Landau theory capturing the competition between magnetocrystalline anisotropies and Zeeman energy is in excellent agreement with the experimental results.

Full-bandwidth Eliashberg theory of superconductivity beyond Migdal's approximation

Fabian Schrodi, Peter M. Oppeneer, and Alex Aperis

Phys. Rev. B 102, 024503 (2020) - Published 2 July, 2020

Here, the authors present the first direct, self-consistent solutions of the anisotropic Eliashberg equations for phonon-mediated superconductivity throughout the whole electron energy bandwidth that fully include the first vertex corrections to the electron self-energy. Their work elucidates aspects of superconductivity beyond Migdal’s theorem, such as the role of spatial dimensionality, and critically assesses previously employed approximations and variations of Eliashberg theory. It paves the way for understanding many superconductors of current interest, wherein the phononic and electronic energies are comparable, such as the high-Tc hydrides, FeSe/SrTiO3, and flat-band systems.

Spectroscopic evidence for strong correlations between local superconducting gap and local Altshuler-Aronov density of states suppression in ultrathin NbN films

C. Carbillet, V. Cherkez, M. A. Skvortsov, M. V. Feigel'man, F. Debontridder, L. B. Ioffe, V. S. Stolyarov, K. Ilin, M. Siegel, D. Roditchev, T. Cren, and C. Brun

Phys. Rev. B 102, 024504 (2020) - Published 2 July, 2020

In metallic films, disorder localizes the electronic wave functions. A consequence is that electronic screening often diminishes. In this situation, a characteristic signature develops in the electronic density of states: a large depletion appears at the Fermi level, an effect predicted by Altshuler and Aronov. Here, the authors show that this depletion presents nanoscale spatial variations in NbN thin films that are spatially strongly correlated to the local superconducting energy gap. This provides a direct link between local Coulombic effects and local superconducting properties.

Electronic multipoles and multiplet pairs induced by Pomeranchuk and Cooper instabilities of Bogoliubov Fermi surfaces

Shun-Ta Tamura, Shoma Iimura, and Shintaro Hoshino

Phys. Rev. B 102, 024505 (2020) - Published 6 July, 2020

It was recently pointed out that Fermi surfaces can survive even in superconductors. Here, the authors study the instability of such systems toward electronic ordering. The ordered states are classified into diagonal and off-diagonal ones, which, respectively, indicate the Pomeranchuk instability and Cooper pairing not of original electrons but of Bogoliubov particles (bogolons). The corresponding order parameters are expanded by multipole moments and multiplet pair amplitudes of original electrons. These results provide insights into superconductors with multiple phase transitions.

Soft-mode enhanced type-I superconductivity in LiPd2Ge

Karolina Górnicka, Gabriel Kuderowicz, Elizabeth M. Carnicom, Kamil Kutorasiński, Bartlomiej Wiendlocha, Robert J. Cava, and Tomasz Klimczuk

Phys. Rev. B 102, 024507 (2020) - Published 6 July, 2020

Although Heusler compounds were discovered more than 100 years ago, research in this family of materials continues to reveal remarkable phenomena. Here, the authors describe a solid-state synthesis method for making LiPd2M (M=Si, Ge, Sn) and report superconductivity in LiPd2Ge with Tc=1.96 K. LiPd2Ge appears to be the first example of type-I superconductivity among Heusler compounds. Theoretical calculations reveal the presence of soft modes that enhance the electron-phonon coupling and can be responsible for the observed superconductivity.

Spin-polarized triplet supercurrent in Josephson junctions with perpendicular ferromagnetic layers

Victor Aguilar, Demet Korucu, Joseph A. Glick, Reza Loloee, W. P. Pratt, Jr., and Norman O. Birge

Phys. Rev. B 102, 024518 (2020) - Published 23 July, 2020

It is now established that ferromagnetic materials placed inside Josephson junctions can convert conventional spin-singlet supercurrent to spin-triplet supercurrent. While such spin-triplet supercurrent is fully polarized in a half-metal, it is only partially polarized in conventional ferromagnetic materials. This work shows that one can increase the spin polarization of the triplet supercurrent substantially by using a sequence of partially spin-polarizing interfaces inside the junction. The prospect of using spin-polarized supercurrents for device applications has spawned a new field called “superconducting spintronics”.

RAPID COMMUNICATIONS

Structure, structural phase transitions, mechanical properties, defects

Multiple-photon transitions in electrically detected magnetic resonance measurements of 4HSiC transistors

James P. Ashton and Patrick M. Lenahan

Phys. Rev. B 102, 020101(R) (2020) - Published 17 July, 2020

Shock-induced plasticity in nanocrystalline iron: Large-scale molecular dynamics simulations

Hoang-Thien Luu, Ramon J. Ravelo, Martin Rudolph, Eduardo M. Bringa, Timothy C. Germann, David Rafaja, and Nina Gunkelmann

Phys. Rev. B 102, 020102(R) (2020) - Published 20 July, 2020

Transformation of shock-compressed copper to the body-centered-cubic structure at 180 GPa

Surinder M. Sharma, Stefan J. Turneaure, J. M. Winey, and Y. M. Gupta

Phys. Rev. B 102, 020103(R) (2020) - Published 29 July, 2020

Magnetism

Exact solution and correlations of a dimer model on the checkerboard lattice

Julia Wildeboer, Zohar Nussinov, and Alexander Seidel

Phys. Rev. B 102, 020401(R) (2020) - Published 6 July, 2020

Bethe-Slater-curve-like behavior and interlayer spin-exchange coupling mechanisms in two-dimensional magnetic bilayers

Cong Wang, Xieyu Zhou, Linwei Zhou, Yuhao Pan, Zhong-Yi Lu, Xiangang Wan, Xiaoqun Wang, and Wei Ji

Phys. Rev. B 102, 020402(R) (2020) - Published 6 July, 2020

Charge density modulation and defect ordering in the NaxMnBiy magnetic semimetal

A. Wegner, D. Louca, K. M. Taddei, and J. Neuefeind

Phys. Rev. B 102, 020403(R) (2020) - Published 6 July, 2020

Why paramagnetic chiral correlations in the long-wavelength limit do not contribute to muon spin relaxation

A. Yaouanc and P. Dalmas de Réotier

Phys. Rev. B 102, 020404(R) (2020) - Published 7 July, 2020

Superconductivity-induced change in magnetic anisotropy in epitaxial ferromagnet-superconductor hybrids with spin-orbit interaction

César González-Ruano, Lina G. Johnsen, Diego Caso, Coriolan Tiusan, Michel Hehn, Niladri Banerjee, Jacob Linder, and Farkhad G. Aliev

Phys. Rev. B 102, 020405(R) (2020) - Published 15 July, 2020

Magnon current generation by dynamical distortion

Junji Fujimoto and Mamoru Matsuo

Phys. Rev. B 102, 020406(R) (2020) - Published 17 July, 2020

Theory of deconfined pseudocriticality

Ruochen Ma and Chong Wang

Phys. Rev. B 102, 020407(R) (2020) - Published 21 July, 2020

Spin Seebeck effect near the antiferromagnetic spin-flop transition

Derek Reitz, Junxue Li, Wei Yuan, Jing Shi, and Yaroslav Tserkovnyak

Phys. Rev. B 102, 020408(R) (2020) - Published 23 July, 2020

Cooperative Ru(4d)Ho(4f) magnetic ordering and phase coexistence in the 6H perovskite multiferroic Ba3HoRu2O9

T. Basu, V. Caignaert, F. Damay, T. W. Heitmann, B. Raveau, and X. Ke

Phys. Rev. B 102, 020409(R) (2020) - Published 23 July, 2020

Domain wall propagation by spin-orbit torques in in-plane magnetized systems

R. Kohno, J. Sampaio, S. Rohart, and A. Thiaville

Phys. Rev. B 102, 020410(R) (2020) - Published 24 July, 2020

Valence bond solid and possible deconfined quantum criticality in an extended kagome lattice Heisenberg antiferromagnet

Alexander Wietek and Andreas M. Läuchli

Phys. Rev. B 102, 020411(R) (2020) - Published 27 July, 2020

Temperature scaling of two-ion anisotropy in pure and mixed anisotropy systems

Richard F. L. Evans, Levente Rózsa, Sarah Jenkins, and Unai Atxitia

Phys. Rev. B 102, 020412(R) (2020) - Published 30 July, 2020

Dynamical aspects of magnetization reversal in the neodymium permanent magnet by a stochastic Landau-Lifshitz-Gilbert simulation at finite temperature: Real-time dynamics and quantitative estimation of coercive force

Masamichi Nishino, Ismail Enes Uysal, Taichi Hinokihara, and Seiji Miyashita

Phys. Rev. B 102, 020413(R) (2020) - Published 30 July, 2020

Superfluidity and superconductivity

Instability of j=32 Bogoliubov Fermi surfaces

Hanbit Oh and Eun-Gook Moon

Phys. Rev. B 102, 020501(R) (2020) - Published 6 July, 2020

There has been much recent interest in exotic superconductivity involving a Fermi surface of Bogoliubov quasiparticles, the so-called Bogoliubov Fermi surface (BG-FS). Here, the authors prove that a centrosymmetric BG-FS becomes unstable under a pairing formation of Bogoliubov quasiparticles. They also prove that the Fermi surface survives even under this instability, in stark contrast to the Bardeen-Cooper-Schrieffer mechanism of superconductivity. This work opens up new possibilities for competing orders in new topological materials, such as FeSe and Sr2RuO4, which may help in the search for exotic superconductivity.

Fundamental difference in the electronic reconstruction of infinite-layer versus perovskite neodymium nickelate films on SrTiO3(001)

Benjamin Geisler and Rossitza Pentcheva

Phys. Rev. B 102, 020502(R) (2020) - Published 8 July, 2020

The discovery of superconductivity in a noncuprate NdNiO2 film on SrTiO3(001) has raised significant interest, though its origin is so far elusive. Since the bulk compound shows no superconductivity, here the authors focus on the role of the film geometry and surface and interface from first principles. A fundamentally distinct electronic reconstruction is found for the infinite layer, as opposed to perovskite films, involving the emergence of an interfacial two-dimensional electron gas and a concomitant depletion of the self-doping Nd 5d states, rendering cupratelike behavior.

Time-reversal symmetry breaking in the noncentrosymmetric Zr3Ir superconductor

T. Shang, S. K. Ghosh, J. Z. Zhao, L.-J. Chang, C. Baines, M. K. Lee, D. J. Gawryluk, M. Shi, M. Medarde, J. Quintanilla, and T. Shiroka

Phys. Rev. B 102, 020503(R) (2020) - Published 17 July, 2020

The Zr3Ir superconductor exhibits the coexistence of two exotic, and normally distinct, features: mixed singlet-triplet pairing and broken time-reversal symmetry. Mixed singlet-triplet pairing can take place in superconductors whose crystal lattices lack inversion symmetry. This relativistic effect, which does not require the breaking of additional symmetries, nor an unconventional pairing mechanism, is often quite small. Broken time-reversal symmetry, on the other hand, means that the superconducting state is magnetic and necessitates an unconventional pairing mechanism. The coexistence of these two phenomena makes Zr3Ir a very unusual material, opening up new perspectives for their understanding.

Theoretical investigation of superconductivity in trilayer square-planar nickelates

Emilian M. Nica, Jyoti Krishna, Rong Yu, Qimiao Si, Antia S. Botana, and Onur Erten

Phys. Rev. B 102, 020504(R) (2020) - Published 27 July, 2020

ARTICLES

Structure, structural phase transitions, mechanical properties, defects

Recovery of a high-pressure phase formed under laser-driven compression

M. G. Gorman, D. McGonegle, S. J. Tracy, S. M. Clarke, C. A. Bolme, A. E. Gleason, S. J. Ali, S. Hok, C. W. Greeff, P. G. Heighway, K. Hulpach, B. Glam, E. Galtier, H. J. Lee, J. S. Wark, J. H. Eggert, J. K. Wicks, and R. F. Smith

Phys. Rev. B 102, 024101 (2020) - Published 6 July, 2020

Origin of mean-field behavior in an elastic Ising model

Layne B. Frechette, Christoph Dellago, and Phillip L. Geissler

Phys. Rev. B 102, 024102 (2020) - Published 6 July, 2020

Temperature and pressure manipulation of magnetic ordering and phonon dynamics with phase transition in multiferroic GdFeO3: Evidence from Raman scattering

Yan Ye (叶艳), Anyang Cui (崔安阳), Mengyun Bian (卞梦云), Kai Jiang (姜凯), Liangqing Zhu (朱亮清), Jinzhong Zhang (张金中), Liyan Shang (商丽燕), Yawei Li (李亚巍), Zhigao Hu (胡志高), and Junhao Chu (褚君浩)

Phys. Rev. B 102, 024103 (2020) - Published 7 July, 2020

High-precision equation of state data for TiO2: A structural analog of SiO2

Sakun Duwal, Chad A. McCoy, Philippe F. Weck, Patricia Kalita, Heath L. Hanshaw, Kyle Cochrane, Tommy Ao, and Seth Root

Phys. Rev. B 102, 024105 (2020) - Published 14 July, 2020

Phonon structure of titanium under shear deformation along {101¯2} twinning mode

Atsushi Togo, Yuta Inoue, and Isao Tanaka

Phys. Rev. B 102, 024106 (2020) - Published 17 July, 2020

Multiscale simulations of electron and ion dynamics in self-irradiated silicon

Cheng-Wei Lee, James A. Stewart, Rémi Dingreville, Stephen M. Foiles, and André Schleife

Phys. Rev. B 102, 024107 (2020) - Published 21 July, 2020

Scaling up the lattice dynamics of amorphous materials by orders of magnitude

Ivan Kriuchevskyi, Vladimir V. Palyulin, Rico Milkus, Robert M. Elder, Timothy W. Sirk, and Alessio Zaccone

Phys. Rev. B 102, 024108 (2020) - Published 22 July, 2020

Electrical detection of ferroelectriclike metals through the nonlinear Hall effect

Rui-Chun Xiao, Ding-Fu Shao, Wenjuan Huang, and Hua Jiang

Phys. Rev. B 102, 024109 (2020) - Published 27 July, 2020

Vector, bidirector, and Bloch skyrmion phases induced by structural crystallographic symmetry breaking

K. C. Erb and J. Hlinka

Phys. Rev. B 102, 024110 (2020) - Published 27 July, 2020

Exotic bonding interactions and coexistence of chemically distinct periodic lattice distortions in the charge density wave compound TaTe2

Valeri Petkov, Kamal Chapagain, Junjie Yang, Sarvjit Shastri, and Yang Ren

Phys. Rev. B 102, 024111 (2020) - Published 29 July, 2020

Temperature dependence of dynamic dipole formation in PbTe

Kristoffer A. U. Holm, Nikolaj Roth, Christian M. Zeuthen, Kasper Tolborg, Anders A. Feidenhans'l, and Bo B. Iversen

Phys. Rev. B 102, 024112 (2020) - Published 29 July, 2020

Neutron scattering study of tantalum dihydride

Mikhail A. Kuzovnikov, Vladimir E. Antonov, Alexandre S. Ivanov, Thomas Hansen, Stanislav Savvin, Valery I. Kulakov, Marek Tkacz, Alexander I. Kolesnikov, and Vladislav M. Gurev

Phys. Rev. B 102, 024113 (2020) - Published 31 July, 2020

Inhomogeneous, disordered, and partially ordered systems

Drive-induced many-body localization and coherent destruction of Stark many-body localization

Devendra Singh Bhakuni, Ritu Nehra, and Auditya Sharma

Phys. Rev. B 102, 024201 (2020) - Published 13 July, 2020

Phonon traces in glassy vibrations

N. S. Shcheblanov, M. E. Povarnitsyn, J. D. Wiles, S. R. Elliott, and S. N. Taraskin

Phys. Rev. B 102, 024202 (2020) - Published 13 July, 2020

Radiative heat transfer and radiative thermal energy for two-dimensional nanoparticle ensembles

Minggang Luo, Junming Zhao, Linhua Liu, and Mauro Antezza

Phys. Rev. B 102, 024203 (2020) - Published 21 July, 2020

Disorder correction to the minimal conductance of a nodal-point semimetal

Zheng Shi, Björn Sbierski, and Piet W. Brouwer

Phys. Rev. B 102, 024204 (2020) - Published 21 July, 2020

Generalized Aubry-André self-duality and mobility edges in non-Hermitian quasiperiodic lattices

Tong Liu, Hao Guo, Yong Pu, and Stefano Longhi

Phys. Rev. B 102, 024205 (2020) - Published 27 July, 2020

Spin-glass phase transition revealed in transport measurements

Guillaume Forestier, Mathias Solana, Cécile Naud, Andreas D. Wieck, François Lefloch, Robert Whitney, David Carpentier, Laurent P. Lévy, and Laurent Saminadayar

Phys. Rev. B 102, 024206 (2020) - Published 31 July, 2020

Dynamics, dynamical systems, lattice effects

Two-path phonon interference resonance induces a stop band in a silicon crystal matrix with a multilayer array of embedded nanoparticles

Shiqian Hu, Lei Feng, Cheng Shao, Ivan A. Strelnikov, Yuriy A. Kosevich, and Junichiro Shiomi

Phys. Rev. B 102, 024301 (2020) - Published 1 July, 2020

Evolution of picosecond surface electric fields generated by photon-induced charge emission from La0.67 Sr0.33MnO3 films

Runze Li, Pengfei Zhu, Haijuan Zhang, Yao Wang, Jie Chen, Peter M. Rentzepis, and Jie Zhang

Phys. Rev. B 102, 024302 (2020) - Published 1 July, 2020

Impact of structural complexity and disorder on lattice dynamics and thermal conductivity in the o-Al13Co4 phase

P.-F. Lory, V. M. Giordano, P. Gille, H. Euchner, M. Mihalkovič, E. Pellegrini, M. Gonzalez, L.-P. Regnault, P. Bastie, H. Schober, S. Pailhes, M. R. Johnson, Yu. Grin, and M. de Boissieu

Phys. Rev. B 102, 024303 (2020) - Published 7 July, 2020

Dynamics of coherence: Maximal quantum Fisher information versus Loschmidt echo

Hadi Cheraghi and Saeed Mahdavifar

Phys. Rev. B 102, 024304 (2020) - Published 9 July, 2020

Evidence of noncollisional femtosecond laser energy deposition in dielectric materials

G. Duchateau, B. Chimier, S. Coudert, E. Smetanina, L. Barilleau, N. Fedorov, H. Jouin, G. Geoffroy, P. Martin, and V. T. Tikhonchuk

Phys. Rev. B 102, 024305 (2020) - Published 9 July, 2020

Scaling behavior of the momentum distribution of a quantum Coulomb system in a confining potential

J. A. E. Bonart, W. H. Appelt, D. Vollhardt, and L. Chioncel

Phys. Rev. B 102, 024306 (2020) - Published 13 July, 2020

Fragile phonon topology on the honeycomb lattice with time-reversal symmetry

Juan L. Mañes

Phys. Rev. B 102, 024307 (2020) - Published 20 July, 2020

Ultrafast photoluminescence in metals: Theory and its application to silver

Shota Ono and Tohru Suemoto

Phys. Rev. B 102, 024308 (2020) - Published 23 July, 2020

Tunable unidirectional compact acoustic amplifier via space-time modulated membranes

Xiaohui Zhu, Junfei Li, Chen Shen, Guangyu Zhang, Steven A. Cummer, and Longqiu Li

Phys. Rev. B 102, 024309 (2020) - Published 30 July, 2020

Magnetism

Spin-torque oscillation in a magnetic insulator probed by a single-spin sensor

H. Zhang, M. J. H. Ku, F. Casola, C. H. R. Du, T. van der Sar, M. C. Onbasli, C. A. Ross, Y. Tserkovnyak, A. Yacoby, and R. L. Walsworth

Phys. Rev. B 102, 024404 (2020) - Published 2 July, 2020

Role of interfacial oxidation in the generation of spin-orbit torques

Satoshi Haku, Akira Musha, Tenghua Gao, and Kazuya Ando

Phys. Rev. B 102, 024405 (2020) - Published 6 July, 2020

Monte Carlo study of a generalized icosahedral model on the simple cubic lattice

Martin Hasenbusch

Phys. Rev. B 102, 024406 (2020) - Published 6 July, 2020

Shortcomings of meta-GGA functionals when describing magnetism

Fabien Tran, Guillaume Baudesson, Jesús Carrete, Georg K. H. Madsen, Peter Blaha, Karlheinz Schwarz, and David J. Singh

Phys. Rev. B 102, 024407 (2020) - Published 6 July, 2020

Magnetic structure and exchange interactions in the layered semiconductor CrPS4

S. Calder, A. V. Haglund, Y. Liu, D. M. Pajerowski, H. B. Cao, T. J. Williams, V. O. Garlea, and D. Mandrus

Phys. Rev. B 102, 024408 (2020) - Published 6 July, 2020

Topological magnonics in the two-dimensional van der Waals magnet CrI3

Esteban Aguilera, R. Jaeschke-Ubiergo, N. Vidal-Silva, Luis E. F. Foa Torres, and A. S. Nunez

Phys. Rev. B 102, 024409 (2020) - Published 6 July, 2020

Ferromagnetic cluster-glass phase in Ca(Co1xIrx)2yAs2 crystals

Santanu Pakhira, N. S. Sangeetha, V. Smetana, A.-V. Mudring, and D. C. Johnston

Phys. Rev. B 102, 024410 (2020) - Published 7 July, 2020

Spin current injection at magnetic insulator/superconductor interfaces

V. S. U. A. Vargas and A. R. Moura

Phys. Rev. B 102, 024412 (2020) - Published 10 July, 2020

Stratonovich-Ito integration scheme in ultrafast spin caloritronics

L. Chotorlishvili, Z. Toklikishvili, X.-G. Wang, V. K. Dugaev, J. Barnaś, and J. Berakdar

Phys. Rev. B 102, 024413 (2020) - Published 10 July, 2020

Imitation of spin density wave order in Cu3Nb2O8

N. Giles-Donovan, N. Qureshi, R. D. Johnson, L. Y. Zhang, S.-W. Cheong, S. Cochran, and C. Stock

Phys. Rev. B 102, 024414 (2020) - Published 10 July, 2020

Ground-state properties of the KΓ model on a honeycomb lattice

Takuto Yamada, Takafumi Suzuki, and Sei-ichiro Suga

Phys. Rev. B 102, 024415 (2020) - Published 13 July, 2020

Magneto-straintronics on a Co-coordinating metalloboronfullerene

Jing Liu, Yiming Zhang, Chun Li, Wei Jin, Georgios Lefkidis, and Wolfgang Hübner

Phys. Rev. B 102, 024416 (2020) - Published 13 July, 2020

In-plane Néel wall chirality and orientation of interfacial Dzyaloshinskii-Moriya vector in magnetic films

MacCallum Robertson, Christopher J. Agostino, Gong Chen, Sang Pyo Kang, Arantzazu Mascaraque, Enrique Garcia Michel, Changyeon Won, Yizheng Wu, Andreas K. Schmid, and Kai Liu

Phys. Rev. B 102, 024417 (2020) - Published 14 July, 2020

Electron transport through antiferromagnetic spin textures and skyrmions in a magnetic tunnel junction

Nima Djavid and Roger K. Lake

Phys. Rev. B 102, 024419 (2020) - Published 16 July, 2020

Direct observation of spin-wave focusing by a Fresnel lens

Joachim Gräfe, Pawel Gruszecki, Mateusz Zelent, Martin Decker, Kahraman Keskinbora, Matthias Noske, Przemysław Gawronski, Hermann Stoll, Markus Weigand, Maciej Krawczyk, Christian H. Back, Eberhard J. Goering, and Gisela Schütz

Phys. Rev. B 102, 024420 (2020) - Published 15 July, 2020

Electric current and field control of vortex structures in cylindrical magnetic nanowires

Jose A. Fernandez-Roldan, Rafael P. del Real, Cristina Bran, Manuel Vazquez, and Oksana Chubykalo-Fesenko

Phys. Rev. B 102, 024421 (2020) - Published 15 July, 2020

Magnetic-field-induced reorientation in the spin-density-wave and the spin-stripe phases of the frustrated spin-12 chain compound βTeVO4

Mirta Herak, Nikolina Novosel, Martina Dragičević, Thierry Guizouarn, Olivier Cador, Helmuth Berger, Matej Pregelj, Andrej Zorko, and Denis Arčon

Phys. Rev. B 102, 024422 (2020) - Published 15 July, 2020

Magnetic-order induced effects in nanocrystalline NiO probed by Raman spectroscopy

Nisha Bala, H. K. Singh, Shikha Verma, and Shyama Rath

Phys. Rev. B 102, 024423 (2020) - Published 16 July, 2020

Crystal electric field excitations in the quantum spin liquid candidate NaErS2

Shang Gao, Fan Xiao, Kazuya Kamazawa, Kazuhiko Ikeuchi, Daniel Biner, Karl W. Krämer, Christian Rüegg, and Taka-hisa Arima

Phys. Rev. B 102, 024424 (2020) - Published 16 July, 2020

Quantum phase transitions in a spin-1 antiferromagnetic chain with long-range interactions and modulated single-ion anisotropy

Jie Ren, Wen-Long You, and Andrzej M. Oleś

Phys. Rev. B 102, 024425 (2020) - Published 17 July, 2020

Field-induced reorientation of helimagnetic order in Cu2OSeO3 probed by magnetic force microscopy

Peter Milde, Laura Köhler, Erik Neuber, Philipp Ritzinger, Markus Garst, Andreas Bauer, Christian Pfleiderer, Helmuth Berger, and Lukas M. Eng

Phys. Rev. B 102, 024426 (2020) - Published 17 July, 2020

Cu2OSeO3 is an insulating skyrmion host material with a magnetoelectric coupling giving rise to electric polarization. Using magnetic force microscopy on the surface of a bulk single crystal, the authors study here the helical real-space spin structure and its reorientation under applied magnetic field. Using Kelvin probe force microscopy, they also measure the field dependency of the electric polarization originating in this reorientation process. An effective Landau theory capturing the competition between magnetocrystalline anisotropies and Zeeman energy is in excellent agreement with the experimental results.

Characterization of spin-orbit torque and thermoelectric effects via coherent magnetization rotation

Huanglin Yang, Huanjian Chen, Meng Tang, Shuai Hu, and Xuepeng Qiu

Phys. Rev. B 102, 024427 (2020) - Published 20 July, 2020

Thermal fluctuations in the Landau-Lifshitz-Bloch model

Marco Menarini and Vitaliy Lomakin

Phys. Rev. B 102, 024428 (2020) - Published 20 July, 2020

Signatures of field-induced Berezinskii-Kosterlitz-Thouless correlations in the three-dimensional manganite Bi0.5Sr0.5Mn0.9Cr0.1O3

Arjun Ashoka, K. S. Bhagyashree, and S. V. Bhat

Phys. Rev. B 102, 024429 (2020) - Published 20 July, 2020

Helical spin liquid in a triangular XXZ magnet from Chern-Simons theory

Tigran Sedrakyan, Roderich Moessner, and Alex Kamenev

Phys. Rev. B 102, 024430 (2020) - Published 20 July, 2020

Heterogeneous magnetism and kinetic arrest in antiperovskite Mn3xNixGaC compounds with Ni2MnGa Heusler insertions

Ö. Çakır, E. Dias, K. R. Priolkar, A. Hoser, M. Farle, and M. Acet

Phys. Rev. B 102, 024431 (2020) - Published 20 July, 2020

Anomalous transition magnetic moments in two-dimensional Dirac materials

Sanghita Sengupta, Madalina I. Furis, Oleg P. Sushkov, and Valeri N. Kotov

Phys. Rev. B 102, 024432 (2020) - Published 20 July, 2020

Magnetic relaxation process determination in the Co/Au nanoparticle system

Pavol Hrubovčák, Adriana Zeleňáková, Vladimír Zeleňák, Davide Peddis, and Dino Fiorani

Phys. Rev. B 102, 024433 (2020) - Published 21 July, 2020

Antiferromagnetic domain switching modulated by an ultrathin Co interlayer in the Fe/Co/CoO/MgO(001) system

Yu Yang, Jianhui Liang, Qian Li, Gong Chen, Chao Zhou, Jia Xu, Lu Sun, Mengmeng Yang, Alpha T. N’Diaye, Zi Qiang Qiu, and Yizheng Wu

Phys. Rev. B 102, 024434 (2020) - Published 21 July, 2020

Laser pulse induced efficient terahertz emission from Co/Al heterostructures

Hui Zhang, Zheng Feng, Jine Zhang, He Bai, Huaiwen Yang, Jianwang Cai, Weisheng Zhao, Wei Tan, Fengxia Hu, Baogen Shen, and Jirong Sun

Phys. Rev. B 102, 024435 (2020) - Published 21 July, 2020

Effect of structural and magnetic disorder on the 3d5d exchange interactions in La2xCaxCoIrO6

L. Bufaiçal, E. Sadrollahi, F. J. Litterst, D. Rigitano, E. Granado, L. T. Coutrim, E. B. Araújo, M. B. Fontes, E. Baggio-Saitovitch, and E. M. Bittar

Phys. Rev. B 102, 024436 (2020) - Published 22 July, 2020

Nonlinear soliton confinement in weakly coupled antiferromagnetic spin chains

H. Lane, C. Stock, S.-W. Cheong, F. Demmel, R. A. Ewings, and F. Krüger

Phys. Rev. B 102, 024437 (2020) - Published 22 July, 2020

Effect of Nd and Rh substitution on the spin dynamics of the Kondo-insulator CeFe2Al10

P. A. Alekseev, J.-M. Mignot, D. T. Adroja, V. N. Lazukov, H. Tanida, Y. Muro, M. Sera, T. Takabatake, P. Steffens, and S. Rols

Phys. Rev. B 102, 024438 (2020) - Published 22 July, 2020

Semianalytical approach to calculating the dynamic modes of magnetic vortices with Dzyaloshinskii-Moriya interactions

Carla Quispe Flores, Casey Chalifour, Jonathon Davidson, Karen L. Livesey, and Kristen S. Buchanan

Phys. Rev. B 102, 024439 (2020) - Published 24 July, 2020

Quantum walk versus classical wave: Distinguishing ground states of quantum magnets by spacetime dynamics

Piotr Wrzosek, Krzysztof Wohlfeld, Damian Hofmann, Tomasz Sowiński, and Michael A. Sentef

Phys. Rev. B 102, 024440 (2020) - Published 24 July, 2020

Two-dimensional chromium pnictides CrX (X=P,As,Sb): Half-metallic ferromagnets with high Curie temperature

A. Mogulkoc, M. Modarresi, and A. N. Rudenko

Phys. Rev. B 102, 024441 (2020) - Published 27 July, 2020

Intriguing behavior of UCo1xRhxGe ferromagnets in magnetic field along the b axis

Jiří Pospíšil, Yoshinori Haga, Atsushi Miyake, Shinsaku Kambe, Yo Tokunaga, Masashi Tokunaga, Etsuji Yamamoto, Petr Proschek, Jiří Volný, and Vladimír Sechovský

Phys. Rev. B 102, 024442 (2020) - Published 28 July, 2020

Current-induced generation of skyrmions in Pt/Co/Os/Pt thin films

J. A. Brock, P. Vallobra, R. D. Tolley, S. A. Montoya, S. Mangin, and E. E. Fullerton

Phys. Rev. B 102, 024443 (2020) - Published 28 July, 2020

Shifts in the skyrmion stabilization due to curvature effects in dome- and antidome-shaped surfaces

Vagson L. Carvalho-Santos, R. M. Corona, D. Altbir, and S. Castillo-Sepúlveda

Phys. Rev. B 102, 024444 (2020) - Published 29 July, 2020

Static and dynamic spin properties in the quantum triangular lattice antiferromagnet Ag2CoO2

H. K. Yoshida, S. E. Dissanayake, A. D. Christianson, C. R. dela Cruz, Y.-Q. Cheng, S. Okamoto, K. Yamaura, M. Isobe, and M. Matsuda

Phys. Rev. B 102, 024445 (2020) - Published 29 July, 2020

Superfluidity and superconductivity

Optical properties of superconducting pressurized LaH10

S. F. Elatresh, T. Timusk, and E. J. Nicol

Phys. Rev. B 102, 024501 (2020) - Published 1 July, 2020

Stiffnessometer: A magnetic-field-free superconducting stiffness meter and its application

Itay Mangel, Itzik Kapon, Nitzan Blau, Katrine Golubkov, Nir Gavish, and Amit Keren

Phys. Rev. B 102, 024502 (2020) - Published 2 July, 2020

Full-bandwidth Eliashberg theory of superconductivity beyond Migdal's approximation

Fabian Schrodi, Peter M. Oppeneer, and Alex Aperis

Phys. Rev. B 102, 024503 (2020) - Published 2 July, 2020

Here, the authors present the first direct, self-consistent solutions of the anisotropic Eliashberg equations for phonon-mediated superconductivity throughout the whole electron energy bandwidth that fully include the first vertex corrections to the electron self-energy. Their work elucidates aspects of superconductivity beyond Migdal’s theorem, such as the role of spatial dimensionality, and critically assesses previously employed approximations and variations of Eliashberg theory. It paves the way for understanding many superconductors of current interest, wherein the phononic and electronic energies are comparable, such as the high-Tc hydrides, FeSe/SrTiO3, and flat-band systems.

Spectroscopic evidence for strong correlations between local superconducting gap and local Altshuler-Aronov density of states suppression in ultrathin NbN films

C. Carbillet, V. Cherkez, M. A. Skvortsov, M. V. Feigel'man, F. Debontridder, L. B. Ioffe, V. S. Stolyarov, K. Ilin, M. Siegel, D. Roditchev, T. Cren, and C. Brun

Phys. Rev. B 102, 024504 (2020) - Published 2 July, 2020

In metallic films, disorder localizes the electronic wave functions. A consequence is that electronic screening often diminishes. In this situation, a characteristic signature develops in the electronic density of states: a large depletion appears at the Fermi level, an effect predicted by Altshuler and Aronov. Here, the authors show that this depletion presents nanoscale spatial variations in NbN thin films that are spatially strongly correlated to the local superconducting energy gap. This provides a direct link between local Coulombic effects and local superconducting properties.

Electronic multipoles and multiplet pairs induced by Pomeranchuk and Cooper instabilities of Bogoliubov Fermi surfaces

Shun-Ta Tamura, Shoma Iimura, and Shintaro Hoshino

Phys. Rev. B 102, 024505 (2020) - Published 6 July, 2020

It was recently pointed out that Fermi surfaces can survive even in superconductors. Here, the authors study the instability of such systems toward electronic ordering. The ordered states are classified into diagonal and off-diagonal ones, which, respectively, indicate the Pomeranchuk instability and Cooper pairing not of original electrons but of Bogoliubov particles (bogolons). The corresponding order parameters are expanded by multipole moments and multiplet pair amplitudes of original electrons. These results provide insights into superconductors with multiple phase transitions.

Interaction between moving Abrikosov vortices in type-II superconductors

V. G. Kogan and R. Prozorov

Phys. Rev. B 102, 024506 (2020) - Published 6 July, 2020

Soft-mode enhanced type-I superconductivity in LiPd2Ge

Karolina Górnicka, Gabriel Kuderowicz, Elizabeth M. Carnicom, Kamil Kutorasiński, Bartlomiej Wiendlocha, Robert J. Cava, and Tomasz Klimczuk

Phys. Rev. B 102, 024507 (2020) - Published 6 July, 2020

Although Heusler compounds were discovered more than 100 years ago, research in this family of materials continues to reveal remarkable phenomena. Here, the authors describe a solid-state synthesis method for making LiPd2M (M=Si, Ge, Sn) and report superconductivity in LiPd2Ge with Tc=1.96 K. LiPd2Ge appears to be the first example of type-I superconductivity among Heusler compounds. Theoretical calculations reveal the presence of soft modes that enhance the electron-phonon coupling and can be responsible for the observed superconductivity.

Conventional isotropic s-wave superconductivity with strong electron-phonon coupling in Sc5Rh6Sn18

Manuel Feig, Walter Schnelle, Alexander Maisuradze, Alfred Amon, Christopher Baines, Michael Nicklas, Silvia Seiro, Ludovic Howald, Rustem Khasanov, Andreas Leithe-Jasper, and Roman Gumeniuk

Phys. Rev. B 102, 024508 (2020) - Published 7 July, 2020

Close inspection of plasmon excitations in cuprate superconductors

Andrés Greco, Hiroyuki Yamase, and Matías Bejas

Phys. Rev. B 102, 024509 (2020) - Published 8 July, 2020

Combined Zeeman and orbital effect on the Josephson effect in rippled graphene

Eirik Holm Fyhn, Morten Amundsen, Ayelet Zalic, Tom Dvir, Hadar Steinberg, and Jacob Linder

Phys. Rev. B 102, 024510 (2020) - Published 9 July, 2020

Andreev reflection at the interface of a normal Weyl semimetal and a superconducting type-II Weyl semimetal

Alireza Azizi and Babak Abdollahipour

Phys. Rev. B 102, 024512 (2020) - Published 13 July, 2020

Zero-energy quasiparticles in an interacting nanowire containing a topological Josephson junction

Julia Boeyens and Izak Snyman

Phys. Rev. B 102, 024513 (2020) - Published 13 July, 2020

Microscopic free energy functional of superconductive amplitude and phase: Superfluid density in disordered superconductors

Sudhansu S. Mandal and T. V. Ramakrishnan

Phys. Rev. B 102, 024514 (2020) - Published 14 July, 2020

Induced half-metallicity and gapless chiral topological superconductivity in the CrI3Pb interface

Gilad Margalit, Binghai Yan, and Yuval Oreg

Phys. Rev. B 102, 024515 (2020) - Published 14 July, 2020

Superconductivity in Cu-doped Bi2Se3 with potential disorder

Takumi Sato and Yasuhiro Asano

Phys. Rev. B 102, 024516 (2020) - Published 17 July, 2020

Fully gapped superconductivity without sign reversal in the topological superconductor PbTaSe2

Yue Sun, Shunichiro Kittaka, Toshiro Sakakibara, Kazushige Machida, R. Sankar, Xiaofeng Xu, Nan Zhou, Xiangzhuo Xing, Zhixiang Shi, Sunseng Pyon, and Tsuyoshi Tamegai

Phys. Rev. B 102, 024517 (2020) - Published 21 July, 2020

Spin-polarized triplet supercurrent in Josephson junctions with perpendicular ferromagnetic layers

Victor Aguilar, Demet Korucu, Joseph A. Glick, Reza Loloee, W. P. Pratt, Jr., and Norman O. Birge

Phys. Rev. B 102, 024518 (2020) - Published 23 July, 2020

It is now established that ferromagnetic materials placed inside Josephson junctions can convert conventional spin-singlet supercurrent to spin-triplet supercurrent. While such spin-triplet supercurrent is fully polarized in a half-metal, it is only partially polarized in conventional ferromagnetic materials. This work shows that one can increase the spin polarization of the triplet supercurrent substantially by using a sequence of partially spin-polarizing interfaces inside the junction. The prospect of using spin-polarized supercurrents for device applications has spawned a new field called “superconducting spintronics”.

High-temperature conventional superconductivity in the boron-carbon system: Material trends

Santanu Saha, Simone Di Cataldo, Maximilian Amsler, Wolfgang von der Linden, and Lilia Boeri

Phys. Rev. B 102, 024519 (2020) - Published 23 July, 2020

Spin resonances in iron selenide high-Tc superconductors by proximity to a hidden spin density wave

J. P. Rodriguez

Phys. Rev. B 102, 024521 (2020) - Published 29 July, 2020

Quantum phase transition of the Bose-Hubbard model with anisotropic hopping on a cubic lattice

Tao Wang (汪涛) and Xue-Feng Zhang (张学锋)

Phys. Rev. B 102, 024522 (2020) - Published 30 July, 2020

Nodeless superconducting gap in the topological superconductor candidate 2MWS2

L. S. Wang, Y. Q. Fang, Y. Y. Huang, E. J. Cheng, J. M. Ni, B. L. Pan, Y. Xu, F. Q. Huang, and S. Y. Li

Phys. Rev. B 102, 024523 (2020) - Published 30 July, 2020

Interplay between superconductivity and non-Fermi liquid at a quantum critical point in a metal. II. The γ model at a finite T for 0<γ<1

Yi-Ming Wu, Artem Abanov, Yuxuan Wang, and Andrey V. Chubukov

Phys. Rev. B 102, 024525 (2020) - Published 30 July, 2020

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