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HIGHLIGHTED ARTICLES

Capacitive probing of electronic phase separation in an oxide two-dimensional electron system

Sander Smink, Hans Boschker, Alexander Brinkman, Jochen Mannhart, and Hans Hilgenkamp

Phys. Rev. B 106, 054205 (2022) - Published 15 August, 2022

Electronic phase separation strongly affects the rich phenomenology of two-dimensional electron systems in complex oxides, but its origins and magnitude are not fully understood. Here, the authors use capacitance measurements to quantify the lateral variation of the carrier density associated with EPS at the LaAlO3/SrTiO3 interface. The very high value of several 1013 cm2 and the pattern of capacitance variation imply that charged defects are the main factor causing phase separation. Measurements of the full superconducting dome show that phase separation suppresses global Tc, especially at low nominal carrier density.

Weakly pinned skyrmion liquid in a magnetic heterostructure

Rhodri Mansell, Yifan Zhou, Kassius Kohvakka, See-Chen Ying, Ken R. Elder, Enzo Granato, Tapio Ala-Nissila, and Sebastiaan van Dijken

Phys. Rev. B 106, 054413 (2022) - Published 10 August, 2022

Magnetic skyrmions are topological quasiparticles that can be formed in systems with particular magnetic interactions. Here, the authors study dense arrays of skyrmions in a thin film heterostructure, showing that the skyrmions form a liquid, the properties of which depend strongly on the size and density of the skyrmions. The presence of pinning sites alters the behavior of the skyrmion liquid compared to typical liquids, but these pinning sites are shown to have a narrow energy distribution compatible with proposed applications.

Excitonic transverse and amplitude fluctuations in noncollinear and charge-ordered RbFe2+Fe3+F6

H. Lane, M. Songvilay, R. A. Ewings, and C. Stock

Phys. Rev. B 106, 054431 (2022) - Published 25 August, 2022

Conventional spin-wave theory of magnetic insulators deals with the investigation of transverse excitations of magnetic moments of fixed length. However, when single-ion energetics such as spin-orbit coupling are relevant, such symmetries are not necessarily present, allowing fluctuations of the magnitude of the magnetic moment. These excitations are termed amplitude modes. Here, the authors develop and investigate a theory for such excitations applied to neutron spectroscopy. They focus their attention on magnetic excitations in the low-temperature phase of RbFe2+Fe3+F6 which is based on a noncollinear arrangement of Fe3+ (S=5/2, l0) and orbitally active Fe2+(S = 2, l =1) magnetic moments. Conditions for the existence and the observation of amplitude modes are discussed, establishing a convention for predicting and analyzing neutron spectra when spin-orbit coupling is a pertinent energy scale.

Tailoring optical excitation to control magnetic skyrmion nucleation

L.-M. Kern, B. Pfau, M. Schneider, K. Gerlinger, V. Deinhart, S. Wittrock, T. Sidiropoulos, D. Engel, I. Will, C. M. Günther, K. Litzius, S. Wintz, M. Weigand, F. Büttner, and S. Eisebitt

Phys. Rev. B 106, 054435 (2022) - Published 30 August, 2022

A single laser pulse can create nanometer-scale magnetic skyrmions in a thin film ferromagnet. However, the skyrmions appear randomly distributed within the excited film area hampering application of the process. Here, the authors present a reliable approach to gain nanometer spatial control over the skyrmions’ positions: reflective masks fabricated on the material’s backside locally affect the optical excitation amplitudes reached. The backside masks precisely define preferred and inhibited regions for skyrmion nucleation while maintaining frontside access to the magnetic film.

Breakdown of the Migdal-Eliashberg theory and a theory of lattice-fermionic superfluidity

Emil A. Yuzbashyan and Boris L. Altshuler

Phys. Rev. B 106, 054518 (2022) - Published 24 August, 2022

Superconductors become unstable at strong renormalized electron-phonon coupling which breaks the crystalline symmetry and gives rise to a new phase. Smoking-gun evidence for this instability is negative specific heat. The authors also predict an upper bound on the superconducting critical temperature and explain why and how a spurious lattice instability as a function of the bare electron-phonon coupling has been frequently mistaken for a genuine breakdown of the Migdal-Eliashberg theory.

Local imaging of diamagnetism in proximity-coupled niobium nanoisland arrays on gold thin films

Logan Bishop-Van Horn, Irene P. Zhang, Emily N. Waite, Ian Mondragon-Shem, Scott Jensen, Junseok Oh, Tom Lippman, Malcolm Durkin, Taylor L. Hughes, Nadya Mason, Kathryn A. Moler, and Ilya Sochnikov

Phys. Rev. B 106, 054521 (2022) - Published 30 August, 2022

Using scanning SQUID susceptometry, the authors measure the local magnetic response of arrays of proximity-coupled superconducting nanoislands with engineered spatial disorder. The measurements, along with detailed numerical simulations, reveal a magnetic susceptibility that is nonlinear, spatially inhomogeneous, and strongly dependent on disorder. This work demonstrates the design, control, and measurement of a model superconducting system to simulate the spatial evolution of superfluid density and phase coherence in 2D superconductors with micron-scale disorder.

Competition between spin ordering and superconductivity near the pseudogap boundary in La2xSrxCuO4: Insights from NMR

I. Vinograd, R. Zhou, H. Mayaffre, S. Krämer, S. K. Ramakrishna, A. P. Reyes, T. Kurosawa, N. Momono, M. Oda, S. Komiya, S. Ono, M. Horio, J. Chang, and M.-H. Julien

Phys. Rev. B 106, 054522 (2022) - Published 31 August, 2022

Spin-stripe order is a property of the high-Tc cuprate La2xSrxCuO4 that is observed for x 0.13 but not at larger doping because it is nullified by superconducting order. However, it can be restored by applying intense magnetic fields that erase superconductivity. The present analysis of NMR data sheds light on how glasslike freezing of spin stripes emerges from the field-induced vortex cores and how such field-induced magnetism matters for the interpretation of any experiment below the pseudogap boundary at x = 0.19.

ARTICLES

Structure, structural phase transitions, mechanical properties, defects

Pressure-stabilized structures of water-neon system under high pressure

Jurong Zhang, Sen Shao, and Hanyu Liu

Phys. Rev. B 106, 054101 (2022) - Published 4 August, 2022

Direct measurement of the scattering cross sections of liquid ortho-deuterium for ultracold neutrons and comparison with model calculations

Stefan Döge, Jürgen Hingerl, Winfried Petry, and Christoph Morkel

Phys. Rev. B 106, 054102 (2022) - Published 8 August, 2022

Anharmonic thermodynamic properties and phase boundary across the postperovskite transition in MgSiO3

Zhen Zhang and Renata M. Wentzcovitch

Phys. Rev. B 106, 054103 (2022) - Published 15 August, 2022

Anomalous ferroelectricity and double-negative effects in bilayer hexagonal boron nitride

Wen Jiang, Chang Liu, Xiaonan Ma, Xing Yu, Shunbo Hu, Xi Li, Lee A. Burton, Yu Liu, Yangyang Chen, Pan Guo, Xiangyang Kong, Laurent Bellaiche, and Wei Ren

Phys. Rev. B 106, 054104 (2022) - Published 15 August, 2022

Bond-order potential for the surface-terminated titanium carbide MXene monolayers Tin+1CnTx (n=1,2,or3;T=OorF)

Gabriel Plummer, Siby Thomas, Mohsen Asle Zaeem, and Garritt J. Tucker

Phys. Rev. B 106, 054105 (2022) - Published 15 August, 2022

Stability and distortion of fcc LaH10 with path-integral molecular dynamics

Kevin K. Ly and David M. Ceperley

Phys. Rev. B 106, 054106 (2022) - Published 17 August, 2022

Absence of precursor incommensurate charge order in electronic nematic Ba0.35Sr0.65Ni2As2

John Collini, Sangjun Lee, Stella X.-L. Sun, Chris Eckberg, Daniel J. Campbell, Peter Abbamonte, and Johnpierre Paglione

Phys. Rev. B 106, 054107 (2022) - Published 22 August, 2022

Using neural network potentials to study defect formation and phonon properties of nitrogen vacancies with multiple charge states in GaN

Koji Shimizu, Ying Dou, Elvis F. Arguelles, Takumi Moriya, Emi Minamitani, and Satoshi Watanabe

Phys. Rev. B 106, 054108 (2022) - Published 22 August, 2022

Hydrogen phase-IV characterization by full account of quantum anharmonicity

Tommaso Morresi, Rodolphe Vuilleumier, and Michele Casula

Phys. Rev. B 106, 054109 (2022) - Published 25 August, 2022

Ramsey envelope modulation in NV diamond magnetometry

Jner Tzern Oon, Jiashen Tang, Connor A. Hart, Kevin S. Olsson, Matthew J. Turner, Jennifer M. Schloss, and Ronald L. Walsworth

Phys. Rev. B 106, 054110 (2022) - Published 26 August, 2022

Phase transition of potassium atoms on silicene-(3×3)/Ag(111)

Cong Wang, Huimin Wang, Wenda Yao, Sheng Meng, Jinglan Qiu, and Ying Liu

Phys. Rev. B 106, 054111 (2022) - Published 29 August, 2022

Exceptional strain strengthening and tuning of mechanical properties of TiN

Chang Liu, Xinxin Gao, Kan Zhang, Weitao Zheng, and Changfeng Chen

Phys. Rev. B 106, 054112 (2022) - Published 29 August, 2022

Long-wavelength phonon dynamics in incommensurate Bi2Sr2CaCu2O8+δ crystals by Brillouin light scattering spectroscopy

B. D. E. McNiven, J. P. F. LeBlanc, and G. T. Andrews

Phys. Rev. B 106, 054113 (2022) - Published 31 August, 2022

Humble planar defects in SiGe nanopillars

Hongbin Yang, Shang Ren, Sobhit Singh, Emily M. Turner, Kevin S. Jones, Philip E. Batson, David Vanderbilt, and Eric Garfunkel

Phys. Rev. B 106, 054114 (2022) - Published 31 August, 2022

Inhomogeneous, disordered, and partially ordered systems

Multipartite entanglement in the random Ising chain

Jay S. Zou, Helen S. Ansell, and István A. Kovács

Phys. Rev. B 106, 054201 (2022) - Published 2 August, 2022

Structural properties of local integrals of motion across the many-body localization transition via a fast and efficient method for their construction

Safa Adami, Mohsen Amini, and Morteza Soltani

Phys. Rev. B 106, 054202 (2022) - Published 9 August, 2022

Scaling of the Fock-space propagator and multifractality across the many-body localization transition

Jagannath Sutradhar, Soumi Ghosh, Sthitadhi Roy, David E. Logan, Subroto Mukerjee, and Sumilan Banerjee

Phys. Rev. B 106, 054203 (2022) - Published 10 August, 2022

Rational approximations of quasiperiodicity via projected Green's functions

Dan S. Borgnia, Ashvin Vishwanath, and Robert-Jan Slager

Phys. Rev. B 106, 054204 (2022) - Published 10 August, 2022

Capacitive probing of electronic phase separation in an oxide two-dimensional electron system

Sander Smink, Hans Boschker, Alexander Brinkman, Jochen Mannhart, and Hans Hilgenkamp

Phys. Rev. B 106, 054205 (2022) - Published 15 August, 2022

Electronic phase separation strongly affects the rich phenomenology of two-dimensional electron systems in complex oxides, but its origins and magnitude are not fully understood. Here, the authors use capacitance measurements to quantify the lateral variation of the carrier density associated with EPS at the LaAlO3/SrTiO3 interface. The very high value of several 1013 cm2 and the pattern of capacitance variation imply that charged defects are the main factor causing phase separation. Measurements of the full superconducting dome show that phase separation suppresses global Tc, especially at low nominal carrier density.

Short-range order in the quasiliquid phases of alkane substructures within aperiodic urea inclusion crystals

A. Simonov, P. Rabiller, C. Mariette, L. Guérin, A. Bosak, A. Popov, and B. Toudic

Phys. Rev. B 106, 054206 (2022) - Published 15 August, 2022

Driving a pure spin current from nuclear-polarization gradients

N. J. Harmon and M. E. Flatté

Phys. Rev. B 106, 054207 (2022) - Published 25 August, 2022

Sensitivity of (multi)fractal eigenstates to a perturbation of the Hamiltonian

M. A. Skvortsov, M. Amini, and V. E. Kravtsov

Phys. Rev. B 106, 054208 (2022) - Published 26 August, 2022

Interplay between edge states and charge density wave order in the Falicov-Kimball model on a Haldane ribbon

Jan Skolimowski

Phys. Rev. B 106, 054209 (2022) - Published 30 August, 2022

Persistent homology analysis of a generalized Aubry-André-Harper model

Yu He, Shiqi Xia, Dimitris G. Angelakis, Daohong Song, Zhigang Chen, and Daniel Leykam

Phys. Rev. B 106, 054210 (2022) - Published 31 August, 2022

Dynamics, dynamical systems, lattice effects

Left-handed optical torque on dipolar plasmonic nanoparticles induced by Fano-like resonance

Huajin Chen, Lv Feng, Jiangnan Ma, Chenghua Liang, Zhifang Lin, and Hongxia Zheng

Phys. Rev. B 106, 054301 (2022) - Published 1 August, 2022

Extreme in-plane phonon blocking in simple chainlike crystals

Zezhu Zeng, Cunzhi Zhang, Niuchang Ouyang, and Yue Chen

Phys. Rev. B 106, 054302 (2022) - Published 2 August, 2022

Topological edge-state contributions to high-order harmonic generation in finite flakes

Hannah Jürß and Dieter Bauer

Phys. Rev. B 106, 054303 (2022) - Published 5 August, 2022

Ab initio study of shock-compressed copper

Maximilian Schörner, Bastian B. L. Witte, Andrew D. Baczewski, Attila Cangi, and Ronald Redmer

Phys. Rev. B 106, 054304 (2022) - Published 11 August, 2022

Coexistence of charge-2 Dirac and Weyl phonons in chiral space groups

Guang Liu, Zhenqiao Huang, Zhongjia Chen, Yuanjun Jin, Changchun He, and Hu Xu

Phys. Rev. B 106, 054306 (2022) - Published 12 August, 2022

Anomaly in the dynamical quantum phase transition in a non-Hermitian system with extended gapless phases

Debashish Mondal and Tanay Nag

Phys. Rev. B 106, 054308 (2022) - Published 15 August, 2022

Resonant energy scales and local observables in the many-body localized phase

Samuel J. Garratt and Sthitadhi Roy

Phys. Rev. B 106, 054309 (2022) - Published 22 August, 2022

Bosonic fractional quantum Hall conductance in shaken honeycomb optical lattices without flat bands

Shiwan Miao, Zhongchi Zhang, Yajuan Zhao, Zihan Zhao, Huaichuan Wang, and Jiazhong Hu

Phys. Rev. B 106, 054310 (2022) - Published 22 August, 2022

Coherent charge carrier dynamics in the presence of thermal lattice vibrations

Donghwan Kim, Alhun Aydin, Alvar Daza, Kobra N. Avanaki, Joonas Keski-Rahkonen, and Eric J. Heller

Phys. Rev. B 106, 054311 (2022) - Published 22 August, 2022

Localization, multifractality, and many-body localization in periodically kicked quasiperiodic lattices

Yu Zhang, Bozhen Zhou, Haiping Hu, and Shu Chen

Phys. Rev. B 106, 054312 (2022) - Published 25 August, 2022

Absence of thermalization of free systems coupled to gapped interacting reservoirs

Marko Ljubotina, Dibyendu Roy, and Tomaž Prosen

Phys. Rev. B 106, 054314 (2022) - Published 31 August, 2022

Magnetism

Origin of noncollinear magnetization coupling across RuX layers

Claas Abert, Sabri Koraltan, Florian Bruckner, Florian Slanovc, Juliana Lisik, Pavlo Omelchenko, Erol Girt, and Dieter Suess

Phys. Rev. B 106, 054401 (2022) - Published 1 August, 2022

Lee-Yang theory of the two-dimensional quantum Ising model

Pascal M. Vecsei, Jose L. Lado, and Christian Flindt

Phys. Rev. B 106, 054402 (2022) - Published 1 August, 2022

Higher-order topological phases of magnons protected by magnetic crystalline symmetries

Yun-Mei Li, Ya-Jie Wu, Xi-Wang Luo, Yongwei Huang, and Kai Chang

Phys. Rev. B 106, 054403 (2022) - Published 1 August, 2022

Control and tunability of magnetic bubble states in multilayers with strong perpendicular magnetic anisotropy at ambient conditions

Ruslan Salikhov, Fabian Samad, Sri Sai Phani Kanth Arekapudi, Rico Ehrler, Jürgen Lindner, Nikolai S. Kiselev, and Olav Hellwig

Phys. Rev. B 106, 054404 (2022) - Published 1 August, 2022

Damping in yttrium iron garnet films with interface

Ravinder Kumar, B. Samantaray, Shubhankar Das, Kishori Lal, D. Samal, and Z. Hossain

Phys. Rev. B 106, 054405 (2022) - Published 2 August, 2022

Anisotropy of magnetoelastic properties in epitaxial Co2FexMn1xSi Heusler alloy thin films

A. Nabiałek, O. Chumak, A. Lynnyk, J. Z. Domagała, A. Pacewicz, B. Salski, J. Krupka, T. Yamamoto, T. Seki, K. Takanashi, L. T. Baczewski, and H. Szymczak

Phys. Rev. B 106, 054406 (2022) - Published 2 August, 2022

Observation of topological Z2 vortex fluctuations in the frustrated Heisenberg magnet NaCrO2

K. Tomiyasu, Y. P. Mizuta, M. Matsuura, K. Aoyama, and H. Kawamura

Phys. Rev. B 106, 054407 (2022) - Published 2 August, 2022

First- and second-order magneto-optical effects and intrinsically anomalous transport in the two-dimensional van der Waals layered magnets CrXY (X=S,Se,Te;Y=Cl,Br,I)

Xiuxian Yang, Ping Yang, Xiaodong Zhou, Wanxiang Feng, and Yugui Yao

Phys. Rev. B 106, 054408 (2022) - Published 3 August, 2022

Suppression of ferromagnetism and influence of disorder in silicon-substituted CeRh6Ge4

Y. J. Zhang, Z. Y. Nie, R. Li, Y. C. Li, D. L. Yang, B. Shen, Y. Chen, F. Du, S. S. Luo, H. Su, R. Shi, S. Y. Wang, M. Nicklas, F. Steglich, M. Smidman, and H. Q. Yuan

Phys. Rev. B 106, 054409 (2022) - Published 8 August, 2022

Spin correlations in the frustrated ferro-antiferromagnet SrZnVO(PO4)2 near saturation

F. Landolt, K. Povarov, Z. Yan, S. Gvasaliya, E. Ressouche, S. Raymond, V. O. Garlea, and A. Zheludev

Phys. Rev. B 106, 054410 (2022) - Published 8 August, 2022

Magnetization tunable Weyl states in EuB6

Jian Yuan, Xianbiao Shi, Hao Su, Xin Zhang, Xia Wang, Na Yu, Zhiqiang Zou, Weiwei Zhao, Jianpeng Liu, and Yanfeng Guo

Phys. Rev. B 106, 054411 (2022) - Published 9 August, 2022

Dzyaloshinskii-Moriya interaction induced magnetoelectric coupling in a tetrahedral molecular spin-frustrated system

Jie-Xiang Yu, Jia Chen, Neil Sullivan, and Hai-Ping Cheng

Phys. Rev. B 106, 054412 (2022) - Published 9 August, 2022

Weakly pinned skyrmion liquid in a magnetic heterostructure

Rhodri Mansell, Yifan Zhou, Kassius Kohvakka, See-Chen Ying, Ken R. Elder, Enzo Granato, Tapio Ala-Nissila, and Sebastiaan van Dijken

Phys. Rev. B 106, 054413 (2022) - Published 10 August, 2022

Magnetic skyrmions are topological quasiparticles that can be formed in systems with particular magnetic interactions. Here, the authors study dense arrays of skyrmions in a thin film heterostructure, showing that the skyrmions form a liquid, the properties of which depend strongly on the size and density of the skyrmions. The presence of pinning sites alters the behavior of the skyrmion liquid compared to typical liquids, but these pinning sites are shown to have a narrow energy distribution compatible with proposed applications.

Nonlinear dynamics of the topological helicity wave in a frustrated skyrmion string

Jing Xia, Xichao Zhang, Xiaoxi Liu, Yan Zhou, and Motohiko Ezawa

Phys. Rev. B 106, 054414 (2022) - Published 10 August, 2022

Deformation of the triangular spin-12 lattice in Na2SrCo(PO4)2

Vera P. Bader, Jan Langmann, Philipp Gegenwart, and Alexander A. Tsirlin

Phys. Rev. B 106, 054415 (2022) - Published 10 August, 2022

Temperature dependence of the local electromagnetic field at the Fe site in multiferroic bismuth ferrite

T. T. Dang, J. Schell, A. G. Boa, D. Lewin, G. Marschick, A. Dubey, M. Escobar-Castillo, C. Noll, R. Beck, Dmitry V. Zyabkin, K. Glukhov, I. C. J. Yap, A. Mokhles Gerami, and D. C. Lupascu

Phys. Rev. B 106, 054416 (2022) - Published 11 August, 2022

Theory of ultrasound propagation in LuCo3 near the low-spin–high-spin crossover

A. A. Tereshchenko, A. S. Ovchinnikov, D. I. Gorbunov, and D. S. Neznakhin

Phys. Rev. B 106, 054417 (2022) - Published 15 August, 2022

Voltage-driven exchange resonance achieving 100% mechanical efficiency

Jun-Yu Tang and Ran Cheng

Phys. Rev. B 106, 054418 (2022) - Published 16 August, 2022

Controllable quantum phase transition in a double-cavity magnonic system

Yan Qin, Sheng-Chang Li, Ke Li, and Juan-Juan Song

Phys. Rev. B 106, 054419 (2022) - Published 16 August, 2022

A-type antiferromagnetic order in the Zintl-phase insulator EuZn2P2

Tanya Berry, Veronica J. Stewart, Benjamin W. Y. Redemann, Chris Lygouras, Nicodemos Varnava, David Vanderbilt, and Tyrel M. McQueen

Phys. Rev. B 106, 054420 (2022) - Published 17 August, 2022

Influence of finite-size effects on the Curie temperature of L10FePt

Nguyen Thanh Binh, Sergiu Ruta, Ondrej Hovorka, Richard F. L. Evans, and Roy W. Chantrell

Phys. Rev. B 106, 054421 (2022) - Published 17 August, 2022

Microscopic origin of coercivity enhancement by dysprosium substitution into neodymium permanent magnets

Masamichi Nishino, Hiroshi Hayasaka, and Seiji Miyashita

Phys. Rev. B 106, 054422 (2022) - Published 17 August, 2022

Geometric integration of classical spin dynamics via a mean-field Schrödinger equation

David Dahlbom, Hao Zhang, Cole Miles, Xiaojian Bai, Cristian D. Batista, and Kipton Barros

Phys. Rev. B 106, 054423 (2022) - Published 19 August, 2022

Temperature-dependent spin-resolved electronic structure of EuO thin films

Tristan Heider, Timm Gerber, Okan Köksal, Markus Eschbach, Ewa Młyńczak, Patrick Lömker, Pika Gospodaric, Mathias Gehlmann, Moritz Plötzing, Rossitza Pentcheva, Lukasz Plucinski, Claus M. Schneider, and Martina Müller

Phys. Rev. B 106, 054424 (2022) - Published 19 August, 2022

Bistability in dissipatively coupled cavity magnonics

H. Pan, Y. Yang, Z. H. An, and C.-M. Hu

Phys. Rev. B 106, 054425 (2022) - Published 22 August, 2022

Dzyaloshinskii-Moriya interaction and magnetic skyrmions induced by curvature

Yonglong Ga, Qirui Cui, Jinghua Liang, Dongxing Yu, Yingmei Zhu, Liming Wang, and Hongxin Yang

Phys. Rev. B 106, 054426 (2022) - Published 22 August, 2022

Anomalous spin dynamics in a two-dimensional magnet induced by anisotropic critical fluctuations

Zefang Li, Dong-Hong Xu, Xue Li, Hai-Jun Liao, Xuekui Xi, Yi-Cong Yu, and Wenhong Wang

Phys. Rev. B 106, 054427 (2022) - Published 22 August, 2022

Theory of inertial spin dynamics in anisotropic ferromagnets

Mikhail Cherkasskii, Igor Barsukov, Ritwik Mondal, Michael Farle, and Anna Semisalova

Phys. Rev. B 106, 054428 (2022) - Published 23 August, 2022

Spin nematic ordering in the spin-1 chain system

A. A. Zvyagin and V. V. Slavin

Phys. Rev. B 106, 054429 (2022) - Published 24 August, 2022

Optically excited spin dynamics of thermally metastable skyrmions in Fe0.75Co0.25Si

J. Kalin, S. Sievers, H. Füser, H. W. Schumacher, M. Bieler, F. García-Sánchez, A. Bauer, and C. Pfleiderer

Phys. Rev. B 106, 054430 (2022) - Published 24 August, 2022

Excitonic transverse and amplitude fluctuations in noncollinear and charge-ordered RbFe2+Fe3+F6

H. Lane, M. Songvilay, R. A. Ewings, and C. Stock

Phys. Rev. B 106, 054431 (2022) - Published 25 August, 2022

Conventional spin-wave theory of magnetic insulators deals with the investigation of transverse excitations of magnetic moments of fixed length. However, when single-ion energetics such as spin-orbit coupling are relevant, such symmetries are not necessarily present, allowing fluctuations of the magnitude of the magnetic moment. These excitations are termed amplitude modes. Here, the authors develop and investigate a theory for such excitations applied to neutron spectroscopy. They focus their attention on magnetic excitations in the low-temperature phase of RbFe2+Fe3+F6 which is based on a noncollinear arrangement of Fe3+ (S=5/2, l0) and orbitally active Fe2+(S = 2, l =1) magnetic moments. Conditions for the existence and the observation of amplitude modes are discussed, establishing a convention for predicting and analyzing neutron spectra when spin-orbit coupling is a pertinent energy scale.

Domain-wall dynamics driven by thermal and electrical spin-transfer torque

Ya-Ru Wang, Chao Yang, Zheng-Chuan Wang, and Gang Su

Phys. Rev. B 106, 054432 (2022) - Published 25 August, 2022

Micromagnetics of magnetic chemical modulations in soft-magnetic cylindrical nanowires

L. Álvaro-Gómez, S. Ruiz-Gómez, C. Fernández-González, M. Schöbitz, N. Mille, J. Hurst, D. Tiwari, A. De Riz, I. M. Andersen, J. Bachmann, L. Cagnon, M. Foerster, L. Aballe, R. Belkhou, J.-C. Toussaint, C. Thirion, A. Masseboeuf, D. Gusakova, L. Pérez, and O. Fruchart

Phys. Rev. B 106, 054433 (2022) - Published 26 August, 2022

Interplay of itinerant electrons and Ising moments in a hybrid honeycomb quantum magnet TmNi3Al9

H. Ge, C. J. Huang, Q. Zhang, N. Zhao, J. Yang, L. Wang, Y. Fu, L. Zhang, Z. M. Song, T. T. Li, F. Ding, J. B. Xu, Y. F. Zhang, X. Tong, S. M. Wang, J. W. Mei, A. Podlesnyak, L. S. Wu, Gang Chen, and J. M. Sheng

Phys. Rev. B 106, 054434 (2022) - Published 29 August, 2022

Tailoring optical excitation to control magnetic skyrmion nucleation

L.-M. Kern, B. Pfau, M. Schneider, K. Gerlinger, V. Deinhart, S. Wittrock, T. Sidiropoulos, D. Engel, I. Will, C. M. Günther, K. Litzius, S. Wintz, M. Weigand, F. Büttner, and S. Eisebitt

Phys. Rev. B 106, 054435 (2022) - Published 30 August, 2022

A single laser pulse can create nanometer-scale magnetic skyrmions in a thin film ferromagnet. However, the skyrmions appear randomly distributed within the excited film area hampering application of the process. Here, the authors present a reliable approach to gain nanometer spatial control over the skyrmions’ positions: reflective masks fabricated on the material’s backside locally affect the optical excitation amplitudes reached. The backside masks precisely define preferred and inhibited regions for skyrmion nucleation while maintaining frontside access to the magnetic film.

Metamagnetism and tricritical behavior in the Kondo lattice model

B. H. Bernhard

Phys. Rev. B 106, 054436 (2022) - Published 30 August, 2022

Spin ice in a general applied magnetic field: Kasteleyn transition, magnetic torque, and rotational magnetocaloric effect

Mark Potts and Owen Benton

Phys. Rev. B 106, 054437 (2022) - Published 30 August, 2022

Quantum dimer model on fullerenes: Resonance, scarring, and confinement

R. Krishna Prahlaadh and R. Ganesh

Phys. Rev. B 106, 054438 (2022) - Published 30 August, 2022

Superfluidity and superconductivity

Boiling and cavitation caused by transient heat transfer in superfluid helium-4

Hamid Sanavandi, Mikai Hulse, Shiran Bao, Yuan Tang, and Wei Guo

Phys. Rev. B 106, 054501 (2022) - Published 1 August, 2022

Theory of superconductivity mediated by topological phonons

Daniele Di Miceli, Chandan Setty, and Alessio Zaccone

Phys. Rev. B 106, 054502 (2022) - Published 1 August, 2022

Full superconducting gap in the candidate topological superconductor In1xPbxTe for x=0.2

M. P. Smylie, Kaya Kobayashi, J. Z. Dans, H. Hebbeker, R. Chapai, W.-K. Kwok, and U. Welp

Phys. Rev. B 106, 054503 (2022) - Published 2 August, 2022

Quantum fluctuations in electrical multiport linear systems

A. Parra-Rodriguez and I. L. Egusquiza

Phys. Rev. B 106, 054504 (2022) - Published 4 August, 2022

Critical fields of superconductors with magnetic impurities

V. G. Kogan and R. Prozorov

Phys. Rev. B 106, 054505 (2022) - Published 4 August, 2022

Critical current density and vortex phase diagram in the superconductor Sn0.55In0.45Te

Yiming Wang, Mingtao Li, Cuiying Pei, Lingling Gao, Kejun Bu, Dong Wang, Xuqiang Liu, Limin Yan, Jia Qu, Nana Li, Bihan Wang, Yifei Fang, Yanpeng Qi, and Wenge Yang

Phys. Rev. B 106, 054506 (2022) - Published 5 August, 2022

Probing emergent QED in quantum spin ice via Raman scattering of phonons: Shallow inelastic scattering and pair production

Arnab Seth, Subhro Bhattacharjee, and Roderich Moessner

Phys. Rev. B 106, 054507 (2022) - Published 5 August, 2022

Absence of nematic instability in LiFeAs

Michael Wissmann, Federico Caglieris, Xiaochen Hong, Saicharan Aswartham, Anna Vorobyova, Igor Morozov, Bernd Büchner, and Christian Hess

Phys. Rev. B 106, 054508 (2022) - Published 8 August, 2022

Enhanced pairing mechanism in cuprate-type crystals

Maximilian Duell, Christian Hainzl, and Eman Hamza

Phys. Rev. B 106, 054509 (2022) - Published 11 August, 2022

Doping-driven antiferromagnetic insulator-superconductor transition: A quantum Monte Carlo study

Tianxing Ma, Da Wang, and Congjun Wu

Phys. Rev. B 106, 054510 (2022) - Published 12 August, 2022

Topological superconductivity in a two-dimensional Weyl SSH model

Peter Rosenberg and Efstratios Manousakis

Phys. Rev. B 106, 054511 (2022) - Published 16 August, 2022

Influence of impurities on the electronic structure in cuprate superconductors

Minghuan Zeng, Xiang Li, Yongjun Wang, and Shiping Feng

Phys. Rev. B 106, 054512 (2022) - Published 18 August, 2022

Interference phenomena in Josephson junctions with ferromagnetic bilayers: Spin-triplet correlations and resonances

Danilo Nikolić, Mihajlo Vanević, Alexander I. Buzdin, and Zoran Radović

Phys. Rev. B 106, 054513 (2022) - Published 19 August, 2022

Topological superconductivity in Sn/Si(111) driven by nonlocal Coulomb interactions

Mehdi Biderang, Mohammad-Hossein Zare, and Jesko Sirker

Phys. Rev. B 106, 054514 (2022) - Published 22 August, 2022

Strange metal electrodynamics across the phase diagram of Bi2xPbxSr2yLayCuO6+δ cuprates

Erik van Heumen, Xuanbo Feng (馮翾博), Silvia Cassanelli, Linda Neubrand, Lennart de Jager, Maarten Berben, Yingkai Huang, Takeshi Kondo, Tsunehiro Takeuchi, and Jan Zaanen

Phys. Rev. B 106, 054515 (2022) - Published 22 August, 2022

Multipole-fluctuation pairing mechanism of dx2y2 + ig superconductivity in Sr2RuO4

Yutao Sheng, Yu Li, and Yi-feng Yang

Phys. Rev. B 106, 054516 (2022) - Published 23 August, 2022

Magneto-topological transitions in multicomponent superconductors

Yuriy Yerin, Stefan-Ludwig Drechsler, Mario Cuoco, and Caterina Petrillo

Phys. Rev. B 106, 054517 (2022) - Published 24 August, 2022

Breakdown of the Migdal-Eliashberg theory and a theory of lattice-fermionic superfluidity

Emil A. Yuzbashyan and Boris L. Altshuler

Phys. Rev. B 106, 054518 (2022) - Published 24 August, 2022

Superconductors become unstable at strong renormalized electron-phonon coupling which breaks the crystalline symmetry and gives rise to a new phase. Smoking-gun evidence for this instability is negative specific heat. The authors also predict an upper bound on the superconducting critical temperature and explain why and how a spurious lattice instability as a function of the bare electron-phonon coupling has been frequently mistaken for a genuine breakdown of the Migdal-Eliashberg theory.

Pressure-stabilized superconducting electride Li5C

Qinfang Wang, Wenwen Cui, Kun Gao, Ju Chen, Tingting Gu, Meixu Liu, Jian Hao, Jingming Shi, and Yinwei Li

Phys. Rev. B 106, 054519 (2022) - Published 29 August, 2022

Local imaging of diamagnetism in proximity-coupled niobium nanoisland arrays on gold thin films

Logan Bishop-Van Horn, Irene P. Zhang, Emily N. Waite, Ian Mondragon-Shem, Scott Jensen, Junseok Oh, Tom Lippman, Malcolm Durkin, Taylor L. Hughes, Nadya Mason, Kathryn A. Moler, and Ilya Sochnikov

Phys. Rev. B 106, 054521 (2022) - Published 30 August, 2022

Using scanning SQUID susceptometry, the authors measure the local magnetic response of arrays of proximity-coupled superconducting nanoislands with engineered spatial disorder. The measurements, along with detailed numerical simulations, reveal a magnetic susceptibility that is nonlinear, spatially inhomogeneous, and strongly dependent on disorder. This work demonstrates the design, control, and measurement of a model superconducting system to simulate the spatial evolution of superfluid density and phase coherence in 2D superconductors with micron-scale disorder.

Competition between spin ordering and superconductivity near the pseudogap boundary in La2xSrxCuO4: Insights from NMR

I. Vinograd, R. Zhou, H. Mayaffre, S. Krämer, S. K. Ramakrishna, A. P. Reyes, T. Kurosawa, N. Momono, M. Oda, S. Komiya, S. Ono, M. Horio, J. Chang, and M.-H. Julien

Phys. Rev. B 106, 054522 (2022) - Published 31 August, 2022

Spin-stripe order is a property of the high-Tc cuprate La2xSrxCuO4 that is observed for x 0.13 but not at larger doping because it is nullified by superconducting order. However, it can be restored by applying intense magnetic fields that erase superconductivity. The present analysis of NMR data sheds light on how glasslike freezing of spin stripes emerges from the field-induced vortex cores and how such field-induced magnetism matters for the interpretation of any experiment below the pseudogap boundary at x = 0.19.

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