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HIGHLIGHTED ARTICLES

Interface transparency to orbital current

Igor Lyalin and Roland K. Kawakami

Phys. Rev. B 110, 104418 (2024) - Published 11 September, 2024

Orbitronics is an exciting new field closely connected to spintronics. One of the important questions is how efficiently orbital currents can be transferred across interfaces. Here, the authors study spin-orbit torque in Cr/Ni bilayers with the insertion of an ultrathin spacer between them. Using the experimentally measured torque as a proxy for the orbital current transferred from Cr to Ni, they find that across 12 different spacer materials, the apparent interface transparency to the orbital current is comparable to or larger than the spin current.

Imaging antiferromagnetic domains in LiCoPO4 via the optical magnetoelectric effect

B. Tóth, V. Kocsis, Y. Tokunaga, Y. Taguchi, Y. Tokura, and S. Bordács

Phys. Rev. B 110, L100405 (2024) - Published 12 September, 2024

Despite the rising scientific interest in antiferromagnets, the detection and manipulation of antiferromagnetic domains remain challenging. In noncentrosymmetric antiferromagnets, the magnetoelectric effect may provide novel opportunities to access the compensated magnetic order. It may enable unusual optical phenomena such as nonreciprocal directional dichroism (NDD). Here, the authors report strong NDD in the near-infrared and visible spectral ranges in LiCoPO4 between its two antiphase (time-reversed) antiferromagnetic domains. The effect is strongest near the telecommunication wavelength of 1550 nm, where a simple laser scanning technique is used to visualize these domains.

Revealing hidden medium-range order in silicate glass formers using many-body correlation functions

Zhen Zhang and Walter Kob

Phys. Rev. B 110, 104203 (2024) - Published 17 September, 2024

The medium-range order in amorphous systems is believed to be related to quantities like dynamic heterogeneity, glass-formation ability, or the elastic properties of the glass. So far, however, there has been no simple way to characterize this order. Here, the authors use a novel many-body correlation function that allows to characterize this order. Applying this approach to sodium silicate glasses reveals that in these systems the temperature and compositional dependence of the medium-range order is surprisingly complex.

Lieb-Schultz-Mattis theorem with long-range interactions

Ruochen Ma

Phys. Rev. B 110, 104412 (2024) - Published 5 September, 2024

The Lieb-Schultz-Mattis theorem states that a finite-range Hamiltonian in translationally and spin-rotationally invariant spin-1/2 systems cannot have a unique gapped ground state. Here, the author extends the theorem to include Hamiltonians with terms that act on a finite number of sites, but which may be far apart, provided that the interaction strength decays with distance faster than a certain power law. As the spatial dimension increases, the power law required to guarantee the result demands faster decay.

Disentangling spin excitation continua in classical and quantum magnets using two-dimensional nonlinear spectroscopy

Emily Z. Zhang, Ciarán Hickey, and Yong Baek Kim

Phys. Rev. B 110, 104415 (2024) - Published 9 September, 2024

Two-dimensional coherent spectroscopy (2DCS) has emerged as a powerful tool for probing nonlinear excitation dynamics in quantum magnets, overcoming the limitations of traditional inelastic neutron scattering as a linear probe. The authors use here classical molecular dynamics simulations to compare the 2DCS responses of various models with large Kitaev interactions, revealing distinct features between quantum spin liquids, classical spin liquids, and large unit cell magnetic orders. These findings underscore the potential for 2DCS in disentangling the complex dynamics of frustrated magnetic systems.

Chiral Stoner magnetism in Dirac bands

Zhiyu Dong and Leonid Levitov

Phys. Rev. B 110, 104420 (2024) - Published 13 September, 2024

Stoner magnetism in bands with Berry curvature features a coupling between spin chirality density and Berry’s orbital magnetism, arising without microscopic spin-orbital interactions. Carriers moving in a spin texture perceive it as a geometric magnetic field coupled to their orbital motion through a spin-dependent gauge field. This emergent spin-orbital interaction, previously predicted to enable chiral magnons at system boundaries, also favors chiral spin textures such as skyrmions – topologically protected, particle-like objects stabilized in the ground state.

Inductive detection of inverse spin-orbit torques in magnetic heterostructures

Misbah Yaqoob, Fabian Kammerbauer, Tom G. Saunderson, Vitaliy I. Vasyuchka, Dongwook Go, Hassan Al-Hamdo, Gerhard Jakob, Yuriy Mokrousov, Mathias Kläui, and Mathias Weiler

Phys. Rev. B 110, 104432 (2024) - Published 25 September, 2024

Controlling magnetization by electrical currents is a key requirement for spintronic applications. It is well established that heavy-metal layers, such as Pt or Ta, can be used to exert current-driven spin-orbit torques on adjacent ferromagnetic thin films. In contrast to this established approach, the authors of this study demonstrate that specific magnetic multilayers can also serve as an efficient source of current-driven spin-orbit torques. Specifically, they show that [Co/Ni] stacks interfaced with CoFeB thin films can generate significant spin-orbit torques, comparable to those observed in the aforementioned heavy metal/ferromagnet bilayers.

Unconventional superconductivity from electronic dipole fluctuations

Grgur Palle and Jörg Schmalian

Phys. Rev. B 110, 104516 (2024) - Published 20 September, 2024

The authors show that electric dipole fluctuations of Fermi-surface states are a possible source of unconventional superconductivity, especially in the presence of parity-mixing and spin-orbit coupling as is the case for Dirac metals. For the latter, they find a leading state analogous to the 3He-B phase and a competitive subleading p-wave state. They also show that the proposed pairing glue is directly measurable in the optical conductivity.

Strong pairing from a small Fermi surface beyond weak coupling: Application to La3Ni2O7

Hui Yang, Hanbit Oh, and Ya-Hui Zhang

Phys. Rev. B 110, 104517 (2024) - Published 26 September, 2024

One of the central questions in condensed matter theory is: can a small Fermi surface phase, which violates the Luttinger theorem, give rise to superconductivity? This paper offers an answer to the question by developing an effective model with the large interlayer exchange coupling J limit in the bilayer model. The model is dubbed the ESD t-J model with six states: one empty state(E), four single states (S), and one double state(D). The authors find that in the normal state with a small doping regime (x=0), the small Fermi surface manifests without symmetry breaking or fractionalization, while the conventional Fermi surface appears at the x=1 limit. Moreover, the superconducting phase at low temperatures is different from the cuprate. The author predicts a doping-tuned BCS to BEC crossover from Feshbach resonance accompanied by superconducting domes near x0.5. The theory can be applied to the recently observed high-Tc superconductor La3Ni2O7 under pressure.

Field-free Josephson diode effect in a d-wave superconductor heterostructure

Hamed Vakili, Moaz Ali, and Alexey A. Kovalev

Phys. Rev. B 110, 104518 (2024) - Published 26 September, 2024

This paper investigates the superconducting diode effect in planar Josephson junctions constructed with unconventional d-wave pairing. Distinguishing between various forms of d-wave pairing can be challenging experimentally. The authors show here that, due to differences in their symmetry, various forms of d-wave pairing exhibit unique patterns of superconducting diode effects as the pairing lobe orientation is varied. These distinct patterns offer a potential method for experimentally identifying the specific type of d-wave pairing present in a superconductor.

Phonon thermal Hall effect in nonmagnetic Y2Ti2O7

Rohit Sharma, Martin Valldor, and Thomas Lorenz

Phys. Rev. B 110, L100301 (2024) - Published 3 September, 2024

The authors report a field-linear thermal Hall effect in single-crystal samples of Y2Ti2O7, Dy2Ti2O7, and DyYTi2O7. The slopes κxy/B show temperature-dependent peaks that align with corresponding peaks in the respective longitudinal thermal conductivities κxx(T). This is consistent with a phononic thermal Hall effect, observed in a growing number of insulating materials. While the presence of magnetic Dy3+ ions significantly influences the longitudinal thermal conductivities, the thermal Hall ratios vary rather weakly between magnetic and nonmagnetic materials, suggesting a primarily nonmagnetic origin of the thermal Hall effect.

Charge separation and directed migration of photoelectrons in LiNbO3:Fe crystals after excitation by nanosecond laser pulses

F. S. Pilyak, E. I. Mareev, A. G. Kulikov, N. M. Asharchuk, N. N. Obydennov, Y. V. Pisarevsky, A. E. Blagov, F. V. Potemkin, and M. V. Kovalchuk

Phys. Rev. B 110, L100302 (2024) - Published 9 September, 2024

Under nanosecond laser excitation, time-delayed changes in the x-ray diffraction parameters of LiNbO3 and LiNbO3:Fe crystals are revealed. On-tip synchronization of 4-ns optical laser pulses with electron bunches in a synchrotron provides a subnanosecond time resolution for diffraction rocking curve (DRC) dynamics. The crystals exhibit a reversible center-of-mass shift and a decrease in DRC integral intensity with recovery in approximately 35 ns. This behavior indicates the formation and decay of a charged layer due to photoelectron migration.

Longitudinal optical phonons in photonic time crystals containing a stationary charge

Sihao Zhang, Junhua Dong, Huanan Li, Jingjun Xu, and Boris Shapiro

Phys. Rev. B 110, L100306 (2024) - Published 23 September, 2024

Photonic time crystals (PTCs) enable exotic light-matter interactions but typically require significant modulation strength to open a wide momentum band gap, limiting their practical realization. Here, the authors demonstrate that a Lorentzian medium-based PTC with a stationary charge cannot only excite but also amplify longitudinal optical phonons, with a band gap spanning the entire momentum space. This infinite momentum band gap can be achieved with a minimal modulation depth, enriching time-varying photonics by incorporating the distinct wave characteristics of longitudinal excitations.

Piezomagnetism in the Ising ferromagnet URhGe

Mikiya Tomikawa, Ryo Araki, Atsutoshi Ikeda, Ai Nakamura, Dai Aoki, Kenji Ishida, and Shingo Yonezawa

Phys. Rev. B 110, L100408 (2024) - Published 20 September, 2024

Piezomagnetism, deformation linear in magnetic fields, is an interesting response that is allowed only in materials, which break time-reversal symmetry. However, the most classical example of time-reversal-symmetry breaking, the ferromagnet, has never been known to exhibit piezomagnetism for more than half a century after the first prediction. Here, the authors found the overlooked piezomagnetism in the ferromagnet URhGe. They observed unconventional V-shaped field-induced deformation using optical-fiber-based strain-gauge technique. Unique monodomain switching of Ising-like magnetization in URhGe is key to this ferromagnetic piezomagnetism.

Superconducting penetration depth through a Van Hove singularity: Sr2RuO4 under uniaxial stress

Eli Mueller, Yusuke Iguchi, Fabian Jerzembeck, Jorge O. Rodriguez, Marisa Romanelli, Edgar Abarca-Morales, Anastasios Markou, Naoki Kikugawa, Dmitry A. Sokolov, Gwansuk Oh, Clifford W. Hicks, Andrew P. Mackenzie, Yoshiteru Maeno, Vidya Madhavan, and Kathryn A. Moler

Phys. Rev. B 110, L100502 (2024) - Published 17 September, 2024

Determining the symmetry of the superconducting gap in Sr2RuO4​ is a critical challenge in the field of unconventional superconductivity. To probe the gap’s structure in k space, this study uses strain to tune the material’s band structure through a Van Hove singularity (VHS), while imaging the superconductivity with scanning SQUID microscopy. The authors observe a peak in the superfluid density at the VHS and demonstrate a T2-dependent temperature behavior of the penetration depth across the entire strain range. These results are consistent with the presence of vertical line nodes in the superconducting gap, and confirm that nonlocal effects in the Meissner screening can lead to T2 behavior in the penetration depth, rather than the T-linear behavior typically expected for vertical line nodes.

Evidence for vertical line nodes in Sr2RuO4 from nonlocal electrodynamics

J. F. Landaeta, K. Semeniuk, J. Aretz, K. R. Shirer, D. A. Sokolov, N. Kikugawa, Y. Maeno, I. Bonalde, J. Schmalian, A. P. Mackenzie, and E. Hassinger

Phys. Rev. B 110, L100503 (2024) - Published 17 September, 2024

Sr2RuO4 is a well-characterized unconventional superconductor, but its gap structure remains unresolved. Here, the authors determine the magnetic penetration depth from precise measurements of the upper and lower critical fields via ac susceptibility on a spherical sample with a very low impurity concentration. Instead of impurities, nonlocal electrodynamics causes the observed T2 temperature dependence in the low-temperature limit. Furthermore, the data agree with a superconducting gap having purely vertical line nodes but not with one having purely horizontal line nodes.

Scanning tunneling spectroscopy study of proximity superconductivity in finite-size quantized surface states

Lucas Schneider, Christian von Bredow, Howon Kim, Khai That Ton, Torben Hänke, Jens Wiebe, and Roland Wiesendanger

Phys. Rev. B 110, L100505 (2024) - Published 20 September, 2024

Normal metals can inherit superconducting pairing when they are proximity-coupled to a superconducting host material. Creating two-dimensional surface states with this pairing can lead to exotic phases of matter. However, their localized nature weakens direct coupling to the host material. This study explores how, despite weak intrinsic coupling – as evident by the observation of several Machida-Shibata-States in high-resolution tunneling spectroscopy – the surface states in Ag(111) and Cu(111) still achieve superconductivity through scattering from step edges and defects.

LETTERS

Structure, structural phase transitions, mechanical properties, defects

Giant electro-optic and elasto-optic effects in ferroelectric NbOI2

Zhenlong Zhang, Xuehan Di, Charles Paillard, Laurent Bellaiche, and Zhijun Jiang

Phys. Rev. B 110, L100101 (2024) - Published 9 September, 2024

Interplay of thermal and nonthermal effects in x-ray-induced ultrafast melting

Ichiro Inoue, Victor Tkachenko, Yuya Kubota, Fabien Dorchies, Toru Hara, Hauke Höppner, Yuichi Inubushi, Konrad J. Kapcia, Hae Ja Lee, Vladimir Lipp, Paloma Martinez, Eiji Nishibori, Taito Osaka, Sven Toleikis, Jumpei Yamada, Makina Yabashi, Beata Ziaja, and Philip A. Heimann

Phys. Rev. B 110, L100102 (2024) - Published 27 September, 2024

Dynamics, dynamical systems, lattice effects

Phonon thermal Hall effect in nonmagnetic Y2Ti2O7

Rohit Sharma, Martin Valldor, and Thomas Lorenz

Phys. Rev. B 110, L100301 (2024) - Published 3 September, 2024

The authors report a field-linear thermal Hall effect in single-crystal samples of Y2Ti2O7, Dy2Ti2O7, and DyYTi2O7. The slopes κxy/B show temperature-dependent peaks that align with corresponding peaks in the respective longitudinal thermal conductivities κxx(T). This is consistent with a phononic thermal Hall effect, observed in a growing number of insulating materials. While the presence of magnetic Dy3+ ions significantly influences the longitudinal thermal conductivities, the thermal Hall ratios vary rather weakly between magnetic and nonmagnetic materials, suggesting a primarily nonmagnetic origin of the thermal Hall effect.

Charge separation and directed migration of photoelectrons in LiNbO3:Fe crystals after excitation by nanosecond laser pulses

F. S. Pilyak, E. I. Mareev, A. G. Kulikov, N. M. Asharchuk, N. N. Obydennov, Y. V. Pisarevsky, A. E. Blagov, F. V. Potemkin, and M. V. Kovalchuk

Phys. Rev. B 110, L100302 (2024) - Published 9 September, 2024

Under nanosecond laser excitation, time-delayed changes in the x-ray diffraction parameters of LiNbO3 and LiNbO3:Fe crystals are revealed. On-tip synchronization of 4-ns optical laser pulses with electron bunches in a synchrotron provides a subnanosecond time resolution for diffraction rocking curve (DRC) dynamics. The crystals exhibit a reversible center-of-mass shift and a decrease in DRC integral intensity with recovery in approximately 35 ns. This behavior indicates the formation and decay of a charged layer due to photoelectron migration.

Nonequilibrium nonlinear effects and dynamical boson condensation in a driven-dissipative Wannier-Stark lattice

Arkadiusz Kosior, Karol Gietka, Farokh Mivehvar, and Helmut Ritsch

Phys. Rev. B 110, L100303 (2024) - Published 10 September, 2024

Anomalous transport in the kinetically constrained quantum East-West model

Pietro Brighi and Marko Ljubotina

Phys. Rev. B 110, L100304 (2024) - Published 11 September, 2024

Topological frequency conversion in rhombohedral multilayer graphene

Étienne Lantagne-Hurtubise, Iliya Esin, Gil Refael, and Frederik Nathan

Phys. Rev. B 110, L100305 (2024) - Published 20 September, 2024

Longitudinal optical phonons in photonic time crystals containing a stationary charge

Sihao Zhang, Junhua Dong, Huanan Li, Jingjun Xu, and Boris Shapiro

Phys. Rev. B 110, L100306 (2024) - Published 23 September, 2024

Photonic time crystals (PTCs) enable exotic light-matter interactions but typically require significant modulation strength to open a wide momentum band gap, limiting their practical realization. Here, the authors demonstrate that a Lorentzian medium-based PTC with a stationary charge cannot only excite but also amplify longitudinal optical phonons, with a band gap spanning the entire momentum space. This infinite momentum band gap can be achieved with a minimal modulation depth, enriching time-varying photonics by incorporating the distinct wave characteristics of longitudinal excitations.

Magnetism

Detecting symmetry fractionalization in gapped quantum spin liquids by magnetic impurities

Shuangyuan Lu and Yuan-Ming Lu

Phys. Rev. B 110, L100401 (2024) - Published 3 September, 2024

Determination of the Néel vector in rutile altermagnets through x-ray magnetic circular dichroism: The case of MnF2

A. Hariki, T. Okauchi, Y. Takahashi, and J. Kuneš

Phys. Rev. B 110, L100402 (2024) - Published 5 September, 2024

Anisotropy-induced spin parity effects

Shuntaro Sumita, Akihiro Tanaka, and Yusuke Kato

Phys. Rev. B 110, L100403 (2024) - Published 6 September, 2024

Evolution of two-magnon bound states in a higher-spin ferromagnetic chain with single-ion anisotropy: A complete solution

Xinlan Lou, Jiawei Li, and Ning Wu

Phys. Rev. B 110, L100404 (2024) - Published 9 September, 2024

Imaging antiferromagnetic domains in LiCoPO4 via the optical magnetoelectric effect

B. Tóth, V. Kocsis, Y. Tokunaga, Y. Taguchi, Y. Tokura, and S. Bordács

Phys. Rev. B 110, L100405 (2024) - Published 12 September, 2024

Despite the rising scientific interest in antiferromagnets, the detection and manipulation of antiferromagnetic domains remain challenging. In noncentrosymmetric antiferromagnets, the magnetoelectric effect may provide novel opportunities to access the compensated magnetic order. It may enable unusual optical phenomena such as nonreciprocal directional dichroism (NDD). Here, the authors report strong NDD in the near-infrared and visible spectral ranges in LiCoPO4 between its two antiphase (time-reversed) antiferromagnetic domains. The effect is strongest near the telecommunication wavelength of 1550 nm, where a simple laser scanning technique is used to visualize these domains.

Magnetic correlations of a doped and frustrated Hubbard model: Benchmarking the two-particle self-consistent theory against a quantum simulator

Guan-Hua Huang and Zhigang Wu

Phys. Rev. B 110, L100406 (2024) - Published 13 September, 2024

Topological edge conduction induced by strong anisotropic exchange interactions

Shehrin Sayed, Pratik Brahma, Cheng-Hsiang Hsu, and Sayeef Salahuddin

Phys. Rev. B 110, L100407 (2024) - Published 13 September, 2024

Piezomagnetism in the Ising ferromagnet URhGe

Mikiya Tomikawa, Ryo Araki, Atsutoshi Ikeda, Ai Nakamura, Dai Aoki, Kenji Ishida, and Shingo Yonezawa

Phys. Rev. B 110, L100408 (2024) - Published 20 September, 2024

Piezomagnetism, deformation linear in magnetic fields, is an interesting response that is allowed only in materials, which break time-reversal symmetry. However, the most classical example of time-reversal-symmetry breaking, the ferromagnet, has never been known to exhibit piezomagnetism for more than half a century after the first prediction. Here, the authors found the overlooked piezomagnetism in the ferromagnet URhGe. They observed unconventional V-shaped field-induced deformation using optical-fiber-based strain-gauge technique. Unique monodomain switching of Ising-like magnetization in URhGe is key to this ferromagnetic piezomagnetism.

Facilitating field-free perpendicular magnetization switching with a Berry curvature dipole in a Weyl semimetal

Dong Li, Xing-Yu Liu, Xing-Guo Ye, Zhen-Cun Pan, Wen-Zheng Xu, Peng-Fei Zhu, An-Qi Wang, Kenji Watanabe, Takashi Taniguchi, and Zhi-Min Liao

Phys. Rev. B 110, L100409 (2024) - Published 27 September, 2024

Superfluidity and superconductivity

Mirror-protected Majorana zero modes in f-wave multilayer graphene superconductors

Võ Tiến Phong, Héctor Sainz-Cruz, Eugene J. Mele, and Francisco Guinea

Phys. Rev. B 110, L100501 (2024) - Published 10 September, 2024

Superconducting penetration depth through a Van Hove singularity: Sr2RuO4 under uniaxial stress

Eli Mueller, Yusuke Iguchi, Fabian Jerzembeck, Jorge O. Rodriguez, Marisa Romanelli, Edgar Abarca-Morales, Anastasios Markou, Naoki Kikugawa, Dmitry A. Sokolov, Gwansuk Oh, Clifford W. Hicks, Andrew P. Mackenzie, Yoshiteru Maeno, Vidya Madhavan, and Kathryn A. Moler

Phys. Rev. B 110, L100502 (2024) - Published 17 September, 2024

Determining the symmetry of the superconducting gap in Sr2RuO4​ is a critical challenge in the field of unconventional superconductivity. To probe the gap’s structure in k space, this study uses strain to tune the material’s band structure through a Van Hove singularity (VHS), while imaging the superconductivity with scanning SQUID microscopy. The authors observe a peak in the superfluid density at the VHS and demonstrate a T2-dependent temperature behavior of the penetration depth across the entire strain range. These results are consistent with the presence of vertical line nodes in the superconducting gap, and confirm that nonlocal effects in the Meissner screening can lead to T2 behavior in the penetration depth, rather than the T-linear behavior typically expected for vertical line nodes.

Evidence for vertical line nodes in Sr2RuO4 from nonlocal electrodynamics

J. F. Landaeta, K. Semeniuk, J. Aretz, K. R. Shirer, D. A. Sokolov, N. Kikugawa, Y. Maeno, I. Bonalde, J. Schmalian, A. P. Mackenzie, and E. Hassinger

Phys. Rev. B 110, L100503 (2024) - Published 17 September, 2024

Sr2RuO4 is a well-characterized unconventional superconductor, but its gap structure remains unresolved. Here, the authors determine the magnetic penetration depth from precise measurements of the upper and lower critical fields via ac susceptibility on a spherical sample with a very low impurity concentration. Instead of impurities, nonlocal electrodynamics causes the observed T2 temperature dependence in the low-temperature limit. Furthermore, the data agree with a superconducting gap having purely vertical line nodes but not with one having purely horizontal line nodes.

Exposing the odd-parity superconductivity in CeRh2As2 with hydrostatic pressure

K. Semeniuk, M. Pfeiffer, J. F. Landaeta, M. Nicklas, C. Geibel, M. Brando, S. Khim, and E. Hassinger

Phys. Rev. B 110, L100504 (2024) - Published 20 September, 2024

Scanning tunneling spectroscopy study of proximity superconductivity in finite-size quantized surface states

Lucas Schneider, Christian von Bredow, Howon Kim, Khai That Ton, Torben Hänke, Jens Wiebe, and Roland Wiesendanger

Phys. Rev. B 110, L100505 (2024) - Published 20 September, 2024

Normal metals can inherit superconducting pairing when they are proximity-coupled to a superconducting host material. Creating two-dimensional surface states with this pairing can lead to exotic phases of matter. However, their localized nature weakens direct coupling to the host material. This study explores how, despite weak intrinsic coupling – as evident by the observation of several Machida-Shibata-States in high-resolution tunneling spectroscopy – the surface states in Ag(111) and Cu(111) still achieve superconductivity through scattering from step edges and defects.

Tunneling spectra of unconventional quasi-two-dimensional superconductors

L. Pisani, A. G. Moshe, P. Pieri, G. Calvanese Strinati, and G. Deutscher

Phys. Rev. B 110, L100506 (2024) - Published 23 September, 2024

Unaltered density wave transition and pressure-induced signature of superconductivity in Nd-doped La3Ni2O7

Jun-Jie Feng, Tao Han, Jiang-Peng Song, Ming-Sheng Long, Xing-Yuan Hou, Chang-Jin Zhang, Qing-Ge Mu, and Lei Shan

Phys. Rev. B 110, L100507 (2024) - Published 30 September, 2024

Representation-protected topology of spin-singlet s-wave superconductors

Shingo Kobayashi and Akira Furusaki

Phys. Rev. B 110, L100508 (2024) - Published 30 September, 2024

ARTICLES

Structure, structural phase transitions, mechanical properties, defects

Diagnosing quantum phases using long-range two-site quantum resource behavior

Lin-Lin Su, Jun Ren, Wen-Long Ma, Z. D. Wang, and Yan-Kui Bai

Phys. Rev. B 110, 104101 (2024) - Published 3 September, 2024

Dynamic critical exponent in quantum long-range models

Dario Benedetti, Razvan Gurau, and Davide Lettera

Phys. Rev. B 110, 104102 (2024) - Published 4 September, 2024

Topological hierarchy in non-Hermitian three-dimensional photonic crystals

Yuexin Zhang, Xiaoyu Dai, and Yuanjiang Xiang

Phys. Rev. B 110, 104103 (2024) - Published 5 September, 2024

Formation and structure of MuOH in ice studied by muon spin rotation

Amba Datt Pant, Akihiro Koda, Burkhard Geil, Katsuhiko Ishida, Rajendra Adhikari, Kazuaki Kuwahata, Masanori Tachikawa, and Koichiro Shimomura

Phys. Rev. B 110, 104104 (2024) - Published 11 September, 2024

Continuum skin effect in orthotropic elasticity

Aoxi Wang and Chang Qing Chen

Phys. Rev. B 110, 104105 (2024) - Published 11 September, 2024

Topology reconstruction for asymmetric systems by homomorphic mapping or perturbation approximation

Yunlin Li, Jingguang Chen, Xingchao Qi, Langlang Xiong, Xianjun Wang, Yufu Liu, Fang Guan, Lei Shi, and Xunya Jiang

Phys. Rev. B 110, 104106 (2024) - Published 13 September, 2024

Phase field modeling for atoms

Kairi Masuda and Andrew M. Rappe

Phys. Rev. B 110, 104107 (2024) - Published 16 September, 2024

Defect-induced anomalous magnetic response of valley polarization in multilayer-corralled MoS2 monolayers

Tiantian Zhang, Yang Yang, Yang Guo, Qinghu Bai, Hao Chang, Ruifen Dou, and Changzhi Gu

Phys. Rev. B 110, 104108 (2024) - Published 16 September, 2024

Impact of sulfur doping on copper-substituted lead apatite

Ming-Long Wang, Yin-Hui Peng, Ji-Hai Liao, Xiao-Bao Yang, Yao Yao, and Yu-Jun Zhao

Phys. Rev. B 110, 104109 (2024) - Published 17 September, 2024

Bound states in the continuum and topological phase singularities in an acoustic Gires-Tournois interferometer setting

Sheng Zhang, Zhenhang Pu, Manzhu Ke, Fengming Liu, and Zhengyou Liu

Phys. Rev. B 110, 104110 (2024) - Published 23 September, 2024

Polytypism of incommensurately modulated structures of crystalline bromine upon molecular dissociation under high pressure

Yuqing Yin, Andrey Aslandukov, Maxim Bykov, Dominique Laniel, Alena Aslandukova, Anna Pakhomova, Timofey Fedotenko, Wenju Zhou, Fariia Iasmin Akbar, Michael Hanfland, Konstantin Glazyrin, Carlotta Giacobbe, Eleanor Lawrence Bright, Gaston Garbarino, Zhitai Jia, Natalia Dubrovinskaia, and Leonid Dubrovinsky

Phys. Rev. B 110, 104111 (2024) - Published 23 September, 2024

First-order and Berezinskii-Kosterlitz-Thouless phase transitions in two-dimensional generalized XY models

P. A. da Silva, R. J. Campos-Lopes, and A. R. Pereira

Phys. Rev. B 110, 104112 (2024) - Published 24 September, 2024

First-principles investigation of dominant strain axes in chemical vapor deposition grown monolayer MoS2

Nathaniel Bunker, Rafael N. Gontijo, Ana Laura Elías, and Manuel Smeu

Phys. Rev. B 110, 104113 (2024) - Published 24 September, 2024

Mean-field approach to midspectrum eigenstates of long-range interacting quantum systems

Bojan Žunkovič and Pedro Ribeiro

Phys. Rev. B 110, 104114 (2024) - Published 26 September, 2024

Inhomogeneous, disordered, and partially ordered systems

Correlations in interacting electron liquids: Many-body statistics and hyperuniformity

Haina Wang, Rhine Samajdar, and Salvatore Torquato

Phys. Rev. B 110, 104201 (2024) - Published 3 September, 2024

Normal weak eigenstate thermalization

Patrycja Łydżba, Rafał Świętek, Marcin Mierzejewski, Marcos Rigol, and Lev Vidmar

Phys. Rev. B 110, 104202 (2024) - Published 3 September, 2024

Revealing hidden medium-range order in silicate glass formers using many-body correlation functions

Zhen Zhang and Walter Kob

Phys. Rev. B 110, 104203 (2024) - Published 17 September, 2024

The medium-range order in amorphous systems is believed to be related to quantities like dynamic heterogeneity, glass-formation ability, or the elastic properties of the glass. So far, however, there has been no simple way to characterize this order. Here, the authors use a novel many-body correlation function that allows to characterize this order. Applying this approach to sodium silicate glasses reveals that in these systems the temperature and compositional dependence of the medium-range order is surprisingly complex.

Atomic structure of uranium-incorporated sodium borosilicate glasses: An ab initio study

Kashi N. Subedi and Roxanne M. Tutchton

Phys. Rev. B 110, 104204 (2024) - Published 27 September, 2024

Dynamics, dynamical systems, lattice effects

Floquet engineering of many-body states by the ponderomotive potential

Zhiyuan Sun

Phys. Rev. B 110, 104301 (2024) - Published 3 September, 2024

Coexisting polarization mechanisms in the ferroelectric uniaxial tetragonal tungsten bronze Ca0.3Ba0.7Nb2O6

Elena Buixaderas, Šarūnas Svirskas, Christelle Kadlec, Maxim Savinov, Patricija Lapienytė, Anirudh K. R., Cosme Milesi-Brault, Dmitry Nuzhnyy, and Jan Dec

Phys. Rev. B 110, 104302 (2024) - Published 3 September, 2024

Oscillating-mode gap: An indicator of phase transitions in open quantum many-body systems

Taiki Haga

Phys. Rev. B 110, 104303 (2024) - Published 9 September, 2024

Real-space thermalization of locally driven quantum magnets

Ronald Melendrez, Bhaskar Mukherjee, Prakash Sharma, Arijeet Pal, and Hitesh J. Changlani

Phys. Rev. B 110, 104304 (2024) - Published 9 September, 2024

Manipulating the relaxation time of boundary-dissipative systems through bond dissipation

Yi Peng, Chao Yang, and Yucheng Wang

Phys. Rev. B 110, 104305 (2024) - Published 12 September, 2024

Nonlinear corner states in a topologically nontrivial kagome lattice

K. Prabith, Georgios Theocharis, and Rajesh Chaunsali

Phys. Rev. B 110, 104307 (2024) - Published 24 September, 2024

Impact of the acoustic phonon bandwidth on three-phonon and four-phonon scattering in half-Heusler materials

Yu Wu, Shengnan Dai, Linxuan Ji, Yimin Ding, Shuming Zeng, Jiong Yang, and Liujiang Zhou

Phys. Rev. B 110, 104308 (2024) - Published 24 September, 2024

Characteristic terahertz emissions induced by optically excited collective orbital modes

Sangeeta Rajpurohit, Christian Jooss, Simone Techert, Tadashi Ogitsu, P. E. Blöchl, and L. Z. Tan

Phys. Rev. B 110, 104309 (2024) - Published 24 September, 2024

Exchange kernel fxh(q,ω) of electron liquid from the variational principle of McLachlan

Vladimir U. Nazarov and Vyacheslav M. Silkin

Phys. Rev. B 110, 104310 (2024) - Published 26 September, 2024

Dynamical geometry of the Haldane model under a quantum quench

Liwei Qiu, Lih-King Lim, and Xin Wan

Phys. Rev. B 110, 104311 (2024) - Published 26 September, 2024

Fourier transform infrared investigation of dielectric and lattice dynamical properties of CuAlO2 delafossite under high pressure

C. Ferrer-Roca, J. Pellicer-Porres, A. Segura, V. Panchal, D. Kim, P. Rodríguez-Hernández, A. Muñoz, and A. Polian

Phys. Rev. B 110, 104312 (2024) - Published 27 September, 2024

Magnetism

Unraveling intricate magnetic behavior involving negative magnetization and exchange-bias in ErFe0.5Co0.5O3

Deepak Garg, Amit Kumar, and S. M. Yusuf

Phys. Rev. B 110, 104401 (2024) - Published 3 September, 2024

Exact staggered dimer ground state and its stability in a two-dimensional magnet

Manas Ranjan Mahapatra and Rakesh Kumar

Phys. Rev. B 110, 104402 (2024) - Published 3 September, 2024

Classical dynamics of the antiferromagnetic Heisenberg S=12 spin ladder

David A. Dahlbom, Jinu Thomas, Steven Johnston, Kipton Barros, and Cristian D. Batista

Phys. Rev. B 110, 104403 (2024) - Published 3 September, 2024

Large dampinglike torque contribution originating from the orbital Rashba-Edelstein effect at a Pt/CoO interface

Bo Wang, Yonghai Guo, Xingrong Qi, Bo Zhang, Zhide Li, Ziyang Hu, Qi Wang, and Jiangwei Cao

Phys. Rev. B 110, 104404 (2024) - Published 3 September, 2024

Magnetic symmetries of terbium tetraboride (TbB4) revealed by resonant x-ray Bragg diffraction

R. D. Johnson and S. W. Lovesey

Phys. Rev. B 110, 104405 (2024) - Published 3 September, 2024

Large magnon magnetoresistance of two-dimensional ferromagnets

Caleb Webb and Shufeng Zhang

Phys. Rev. B 110, 104406 (2024) - Published 3 September, 2024

Tuning the anomalous Hall effect of the high Curie temperature nodal-line metal Fe3Ga via Mn doping and associated band topology

Zezhong Li, Mengwei Liu, Dongwei Wang, Enke Liu, and Zhuhong Liu

Phys. Rev. B 110, 104407 (2024) - Published 3 September, 2024

Gap solitons in nanoscale YIG magnonic crystals

Maria A. Morozova, Oleg V. Matveev, Dmitry V. Romanenko, Vera V. Balaeva, Sergey A. Gusev, Nikita S. Gusev, and Sergey A. Nikitov

Phys. Rev. B 110, 104408 (2024) - Published 4 September, 2024

Conformal anomaly in finite-temperature magnetic response of one-dimensional spin systems

C. Northe, C. Zhang, R. Wawrzyńczak, J. Gooth, S. Galeski, and E. M. Hankiewicz

Phys. Rev. B 110, 104409 (2024) - Published 4 September, 2024

Large magneto-optical effects in the van der Waals ferrimagnet Mn3Si2Te6

Yuling Yin, Xiangang Wan, Xinhai Tu, and Di Wang

Phys. Rev. B 110, 104410 (2024) - Published 4 September, 2024

Quantum skyrmion dynamics studied by neural network quantum states

Ashish Joshi, Robert Peters, and Thore Posske

Phys. Rev. B 110, 104411 (2024) - Published 5 September, 2024

Lieb-Schultz-Mattis theorem with long-range interactions

Ruochen Ma

Phys. Rev. B 110, 104412 (2024) - Published 5 September, 2024

The Lieb-Schultz-Mattis theorem states that a finite-range Hamiltonian in translationally and spin-rotationally invariant spin-1/2 systems cannot have a unique gapped ground state. Here, the author extends the theorem to include Hamiltonians with terms that act on a finite number of sites, but which may be far apart, provided that the interaction strength decays with distance faster than a certain power law. As the spatial dimension increases, the power law required to guarantee the result demands faster decay.

Diffusion constants from the recursion method

Jiaozi Wang, Mats H. Lamann, Robin Steinigeweg, and Jochen Gemmer

Phys. Rev. B 110, 104413 (2024) - Published 6 September, 2024

Classical spin models and basic magnetic interactions on 1/1-approximant crystals

Daniel Qvarngård and P. Henelius

Phys. Rev. B 110, 104414 (2024) - Published 9 September, 2024

Disentangling spin excitation continua in classical and quantum magnets using two-dimensional nonlinear spectroscopy

Emily Z. Zhang, Ciarán Hickey, and Yong Baek Kim

Phys. Rev. B 110, 104415 (2024) - Published 9 September, 2024

Two-dimensional coherent spectroscopy (2DCS) has emerged as a powerful tool for probing nonlinear excitation dynamics in quantum magnets, overcoming the limitations of traditional inelastic neutron scattering as a linear probe. The authors use here classical molecular dynamics simulations to compare the 2DCS responses of various models with large Kitaev interactions, revealing distinct features between quantum spin liquids, classical spin liquids, and large unit cell magnetic orders. These findings underscore the potential for 2DCS in disentangling the complex dynamics of frustrated magnetic systems.

Magnon-mediated quantum gates for superconducting qubits

Martijn Dols, Sanchar Sharma, Lenos Bechara, Yaroslav M. Blanter, Marios Kounalakis, and Silvia Viola Kusminskiy

Phys. Rev. B 110, 104416 (2024) - Published 9 September, 2024

Constraints on 5f-electron magnetism in Ga-stabilized δ-Pu from x-ray magnetic circular dichroism

Alexander A. Baker, Gilberto Fabbris, Daniel Haskel, and Jason R. Jeffries

Phys. Rev. B 110, 104417 (2024) - Published 10 September, 2024

Interface transparency to orbital current

Igor Lyalin and Roland K. Kawakami

Phys. Rev. B 110, 104418 (2024) - Published 11 September, 2024

Orbitronics is an exciting new field closely connected to spintronics. One of the important questions is how efficiently orbital currents can be transferred across interfaces. Here, the authors study spin-orbit torque in Cr/Ni bilayers with the insertion of an ultrathin spacer between them. Using the experimentally measured torque as a proxy for the orbital current transferred from Cr to Ni, they find that across 12 different spacer materials, the apparent interface transparency to the orbital current is comparable to or larger than the spin current.

Magnetoelastic coupling driven magnon gap in a honeycomb antiferromagnet

Jeongheon Choe, Andrey Baydin, Gaihua Ye, Bowen Ma, Cynthia Nnokwe, Martin Rodriguez-Vega, David Lujan, Swati Chaudhary, Fuyang Tay, Jiaming He, Hiroyuki Nojiri, Jianshi Zhou, Gregory A. Fiete, Junichiro Kono, Rui He, and Xiaoqin Li

Phys. Rev. B 110, 104419 (2024) - Published 13 September, 2024

Chiral Stoner magnetism in Dirac bands

Zhiyu Dong and Leonid Levitov

Phys. Rev. B 110, 104420 (2024) - Published 13 September, 2024

Stoner magnetism in bands with Berry curvature features a coupling between spin chirality density and Berry’s orbital magnetism, arising without microscopic spin-orbital interactions. Carriers moving in a spin texture perceive it as a geometric magnetic field coupled to their orbital motion through a spin-dependent gauge field. This emergent spin-orbital interaction, previously predicted to enable chiral magnons at system boundaries, also favors chiral spin textures such as skyrmions – topologically protected, particle-like objects stabilized in the ground state.

Anisotropic magnetic ground state of single-crystalline quasi-two-dimensional honeycomb antiferromagnet YbI3

Nashra Pistawala, Luminita Harnagea, Sitaram Ramakrishnan, Priyanshi Tiwari, M. P. Saravanan, Rajeev Rawat, and Surjeet Singh

Phys. Rev. B 110, 104421 (2024) - Published 19 September, 2024

Role of competing magnetic anisotropies in deriving topologically nontrivial spin textures in oxide heterostructures

Jayaprakash Sahoo, Megha Vagadia, René Hübner, Neeraj Bhatt, Ankit Kumar, Ganesh Sahastrabuddhe, Ram Janay Choudhary, Ravi Shankar Singh, and D. S. Rana

Phys. Rev. B 110, 104422 (2024) - Published 19 September, 2024

Orbital currents in lattice multiorbital systems: Continuity equation, torques, and RKKY interaction

Niels Henrik Aase, Erik Wegner Hodt, Jacob Linder, and Asle Sudbø

Phys. Rev. B 110, 104423 (2024) - Published 19 September, 2024

Strain-driven exchange interaction and interface magnetism in LaNiO3/La0.67Sr0.33MnO3 heterostructures

Harsh Bhatt, Yogesh Kumar, S. Kakkar, Christy J. Kinane, A. Caruana, Sean Langridge, C. Bera, M. Gupta, V. R. Reddy, and Surendra Singh

Phys. Rev. B 110, 104424 (2024) - Published 20 September, 2024

Phonon dynamics in the site-disordered Kitaev spin liquid

Vitor Dantas, Wen-Han Kao, and Natalia B. Perkins

Phys. Rev. B 110, 104425 (2024) - Published 23 September, 2024

Ground state properties of the Heisenberg-compass model on the square lattice

Subhankar Khatua, Griffin C. Howson, Michel J. P. Gingras, and Jeffrey G. Rau

Phys. Rev. B 110, 104426 (2024) - Published 23 September, 2024

Physics-informed time-reversal equivariant neural network potential for magnetic materials

Hongyu Yu, Boyu Liu, Yang Zhong, Liangliang Hong, Junyi Ji, Changsong Xu, Xingao Gong, and Hongjun Xiang

Phys. Rev. B 110, 104427 (2024) - Published 23 September, 2024

Transition from ferromagnetic to noncollinear to paramagnetic state with increasing Ru concentration in FeRu films

Juliana Lisik, Manuel Rojas, Spencer Myrtle, Dominic H. Ryan, René Hübner, Pavlo Omelchenko, Claas Abert, Amil Ducevic, Dieter Suess, Ivan Soldatov, Rudolf Schaefer, Johannes Seyd, Manfred Albrecht, and Erol Girt

Phys. Rev. B 110, 104429 (2024) - Published 24 September, 2024

Stability and dynamics of magnetic skyrmions in FM/AFM heterostructures

Rajgowrav Cheenikundil, Zhiwei Lu, Manuel Pereiro, Anna Delin, and Danny Thonig

Phys. Rev. B 110, 104430 (2024) - Published 25 September, 2024

Six magnetization plateau phases in a spin-12 distorted kagome antiferromagnet: Application to Y3Cu9(OH)19Cl8

Kazu Bodaiji, Katsuhiro Morita, and Yoshiyuki Fukumoto

Phys. Rev. B 110, 104431 (2024) - Published 25 September, 2024

Inductive detection of inverse spin-orbit torques in magnetic heterostructures

Misbah Yaqoob, Fabian Kammerbauer, Tom G. Saunderson, Vitaliy I. Vasyuchka, Dongwook Go, Hassan Al-Hamdo, Gerhard Jakob, Yuriy Mokrousov, Mathias Kläui, and Mathias Weiler

Phys. Rev. B 110, 104432 (2024) - Published 25 September, 2024

Controlling magnetization by electrical currents is a key requirement for spintronic applications. It is well established that heavy-metal layers, such as Pt or Ta, can be used to exert current-driven spin-orbit torques on adjacent ferromagnetic thin films. In contrast to this established approach, the authors of this study demonstrate that specific magnetic multilayers can also serve as an efficient source of current-driven spin-orbit torques. Specifically, they show that [Co/Ni] stacks interfaced with CoFeB thin films can generate significant spin-orbit torques, comparable to those observed in the aforementioned heavy metal/ferromagnet bilayers.

Chiral magnon-polaron edge states in Heisenberg-Kitaev magnets

Jose D. Mella, L. E. F. Foa Torres, and Roberto E. Troncoso

Phys. Rev. B 110, 104433 (2024) - Published 25 September, 2024

Superfluidity and superconductivity

Normal-state resistivity and the depairing current density of BaFe2(As,P)2 nanobridges along the c axis

Yuki Mizukoshi, Kotaro Jimbo, Akiyoshi Park, Yue Sun, Tsuyoshi Tamegai, and Haruhisa Kitano

Phys. Rev. B 110, 104501 (2024) - Published 3 September, 2024

Distinguishing nodal and nonunitary superconductivity in quasiparticle interference of an Ising superconductor with Rashba spin-orbit coupling: The example of NbSe2

Jozef Haniš, Marko Milivojević, and Martin Gmitra

Phys. Rev. B 110, 104502 (2024) - Published 3 September, 2024

Inversion-symmetric electron gases as platforms for topological planar Josephson junctions

Jiong Mei, Kun Jiang, Shengshan Qin, and Jiangping Hu

Phys. Rev. B 110, 104503 (2024) - Published 3 September, 2024

Ambient-pressure superconductivity above 100 K in hole-doped carbon clathrates with superior hardness

Yu-Lin Han, Kai-Yue Jiang, Bao-Tian Wang, Ping Zhang, and Hong-Yan Lu

Phys. Rev. B 110, 104504 (2024) - Published 4 September, 2024

Ab initio study on magnetism suppression, anharmonicity, rattling mode, and superconductivity in Sc6MTe2 (M=Fe,Co,Ni)

Ming-Chun Jiang, Ryota Masuki, Guang-Yu Guo, and Ryotaro Arita

Phys. Rev. B 110, 104505 (2024) - Published 4 September, 2024

Spin supercurrent in superconductor/ferromagnet van der Waals heterostructures

G. A. Bobkov, A. M. Bobkov, and I. V. Bobkova

Phys. Rev. B 110, 104506 (2024) - Published 6 September, 2024

Decomposition of multilayer superconductivity with interlayer pairing

Yi-feng Yang

Phys. Rev. B 110, 104507 (2024) - Published 10 September, 2024

Influence of capacitance and thermal fluctuations on the Josephson diode effect in asymmetric higher-harmonic SQUIDs

G. S. Seleznev and Ya. V. Fominov

Phys. Rev. B 110, 104508 (2024) - Published 10 September, 2024

Continuous tuning of spin-orbit coupled superconductivity in NbSe2

Jia-Yi Ji, Yi Hu, Ting Bao, Yong Xu, Miaoling Huang, Jianhao Chen, Qi-Kun Xue, and Ding Zhang

Phys. Rev. B 110, 104509 (2024) - Published 11 September, 2024

Time reversal symmetry breaking and zero magnetic field Josephson diode effect in Dirac semimetal Cd3As2 mediated asymmetric SQUIDs

W. Yu, J. J. Cuozzo, K. Sapkota, E. Rossi, D. X. Rademacher, T. M. Nenoff, and W. Pan

Phys. Rev. B 110, 104510 (2024) - Published 13 September, 2024

Unexpected anisotropic compression-induced superconductivity in pristine 2H-MoTe2

Tao Lin, Run Lv, Qing Dong, Chenyi Li, Bo Liu, Ran Liu, Xiaoling Jing, Yuping Sun, Quanjun Li, Wenjian Lu, and Bingbing Liu

Phys. Rev. B 110, 104511 (2024) - Published 13 September, 2024

Normal state quantum geometry and superconducting domes in (111) oxide interfaces

Florian Simon, Mark O. Goerbig, and Marc Gabay

Phys. Rev. B 110, 104512 (2024) - Published 16 September, 2024

Josephson effect in a Fibonacci quasicrystal

Anna Sandberg, Oladunjoye A. Awoga, Annica M. Black-Schaffer, and Patric Holmvall

Phys. Rev. B 110, 104513 (2024) - Published 18 September, 2024

Signatures of enhanced spin-triplet superconductivity induced by interfacial properties

Chenghao Shen, Jong E. Han, Thomas Vezin, Mohammad Alidoust, and Igor Žutić

Phys. Rev. B 110, 104514 (2024) - Published 18 September, 2024

Surface density of states and tunneling spectroscopy of a spin-32 superconductor with Bogoliubov Fermi surfaces

Ryoi Ohashi, Shingo Kobayashi, Shotaro Kanazawa, Yukio Tanaka, and Yuki Kawaguchi

Phys. Rev. B 110, 104515 (2024) - Published 19 September, 2024

Unconventional superconductivity from electronic dipole fluctuations

Grgur Palle and Jörg Schmalian

Phys. Rev. B 110, 104516 (2024) - Published 20 September, 2024

The authors show that electric dipole fluctuations of Fermi-surface states are a possible source of unconventional superconductivity, especially in the presence of parity-mixing and spin-orbit coupling as is the case for Dirac metals. For the latter, they find a leading state analogous to the 3He-B phase and a competitive subleading p-wave state. They also show that the proposed pairing glue is directly measurable in the optical conductivity.

Strong pairing from a small Fermi surface beyond weak coupling: Application to La3Ni2O7

Hui Yang, Hanbit Oh, and Ya-Hui Zhang

Phys. Rev. B 110, 104517 (2024) - Published 26 September, 2024

One of the central questions in condensed matter theory is: can a small Fermi surface phase, which violates the Luttinger theorem, give rise to superconductivity? This paper offers an answer to the question by developing an effective model with the large interlayer exchange coupling J limit in the bilayer model. The model is dubbed the ESD t-J model with six states: one empty state(E), four single states (S), and one double state(D). The authors find that in the normal state with a small doping regime (x=0), the small Fermi surface manifests without symmetry breaking or fractionalization, while the conventional Fermi surface appears at the x=1 limit. Moreover, the superconducting phase at low temperatures is different from the cuprate. The author predicts a doping-tuned BCS to BEC crossover from Feshbach resonance accompanied by superconducting domes near x0.5. The theory can be applied to the recently observed high-Tc superconductor La3Ni2O7 under pressure.

Field-free Josephson diode effect in a d-wave superconductor heterostructure

Hamed Vakili, Moaz Ali, and Alexey A. Kovalev

Phys. Rev. B 110, 104518 (2024) - Published 26 September, 2024

This paper investigates the superconducting diode effect in planar Josephson junctions constructed with unconventional d-wave pairing. Distinguishing between various forms of d-wave pairing can be challenging experimentally. The authors show here that, due to differences in their symmetry, various forms of d-wave pairing exhibit unique patterns of superconducting diode effects as the pairing lobe orientation is varied. These distinct patterns offer a potential method for experimentally identifying the specific type of d-wave pairing present in a superconductor.

Slow electron-phonon relaxation controls the dynamics of the superconducting resistive transition

E. M. Baeva, A. I. Kolbatova, N. A. Titova, S. Saha, A. Boltasseva, S. Bogdanov, V. M. Shalaev, A. V. Semenov, A. Levchenko, G. N. Goltsman, and V. S. Khrapai

Phys. Rev. B 110, 104519 (2024) - Published 27 September, 2024

Breakdown of order fractionalization in the CPT model

Aaditya Panigrahi, Alexei Tsvelik, and Piers Coleman

Phys. Rev. B 110, 104520 (2024) - Published 27 September, 2024

Controlled disorder-induced peak effect in the single-crystalline Ca3Rh4Sn13 superconductor

Sunil Ghimire, Kamal R. Joshi, Elizabeth H. Krenkel, Marcin Kończykowski, Romain Grasset, Makariy A. Tanatar, Shuzhang Chen, Cedomir Petrovic, and Ruslan Prozorov

Phys. Rev. B 110, 104521 (2024) - Published 30 September, 2024

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