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HIGHLIGHTED ARTICLES

Open quantum system theory of muon spin relaxation in materials

Elvis F. Arguelles and Osamu Sugino

Phys. Rev. B 114, 034313 (2026) - Published 28 July, 2026

Here, the authors formulate muon spin relaxation as a non-Markovian open quantum spin problem, allowing temporally correlated magnetic noise and retarded environmental response to be treated on equal footing. Applied to Li0.73CoO2, the approach explains zero- and weak-longitudinal-field μSR spectra with a common parameter set and connects the observed relaxation to Li-driven field fluctuations.

Ferroelastic domain wall motion and collective domain switching in RbSCN

V. Soprunyuk, A. Tröster, J. Pils, W. Schranz, I. Rychetsky, A. Klic, and M. A. Carpenter

Phys. Rev. B 114, 034113 (2026) - Published 17 July, 2026

Combined low-frequency elastodynamics and resonant ultrasound spectroscopy on RbSCN across its improper ferroelastic phase transition reveal superelastic softening and, uniquely, a discontinuous Young’s modulus jump with frequency-dependent damping at T* < Tc, mimicking a first-order transition. Thermal cycling above T* erases ferroelastic domains. A compressible pseudospin model links T* to collective domain switching when the critical pinning stress σc(T) falls below the applied stress, yielding σc(T) in excellent accord with experiment.

Predictive dislocation mobility in high-entropy alloys without driven molecular dynamics: A quantum statistical approach

B. Gurrutxaga-Lerma and J. E. Arnold

Phys. Rev. B 114, 034116 (2026) - Published 27 July, 2026

Dislocation mobility in concentrated alloys is normally extracted from driven molecular dynamics, one costly simulation per data point. Here the authors obtain it instead from equilibrium lattice dynamics: integrating out the phonons on the Keldysh contour gives a causal memory kernel, whose zero-frequency limit is the dislocation’s phonon drag coefficient. The authors show drag to vary non-monotonically with composition, and that averaging the chemistry discards a positive variance term, so effective medium estimates underpredict drag by about 2 to 8.

Observation of π/3 and 2π/3 modes in an acoustic Floquet system

Zheng-bo Cheng, Hong-xiang Sun, Shou-qi Yuan, Zheyu Cheng, and Baile Zhang

Phys. Rev. B 114, 034207 (2026) - Published 16 July, 2026

Floquet topological systems support boundary states pinned at discrete quasienergies. Here, the authors experimentally realize Floquet edge states with fractional quasienergies π/3 and 2π/3 in an acoustic waveguide array, establishing a new family of fractional Floquet edge states beyond the conventional 0 and π quasienergy paradigm.

Design principles for enhanced quantum transport with site-dependent noise

Maggie Lawrence, Elise Wang, and Dvira Segal

Phys. Rev. B 114, 034210 (2026) - Published 24 July, 2026

Chains with ramped or disordered energy profiles exhibit suppressed coherent quantum transport. Incoherent processes, however, can partially overcome this suppression. Here, the authors optimize transport in chains with power-law tunneling as a function of individual site dephasing rates. The dynamics are simulated using the Lindblad quantum master equation, with gradient ascent employed for optimization. The study identifies distinct strategies for enhancing transport in different models. For chains with ramped energy landscape, an alternating pattern of site-dependent dephasing optimizes transport.

Majorana string simulation of nonequilibrium dynamics in two-dimensional lattice fermion systems

Matteo D'Anna, Jannes Nys, and Juan Carrasquilla

Phys. Rev. B 114, 034305 (2026) - Published 10 July, 2026

Simulating the real-time dynamics of fermionic systems remains a major open problem at the core of understanding materials, chemistry, and other strongly correlated systems. Here, the authors present Majorana propagation, a Heisenberg-picture algorithm that evolves observables in a Majorana-string basis. Benchmarks against tensor network methods and recent quantum experimental data show that the method provides accurate results in the strongly interacting regime in two-dimensional lattices, a notoriously classically hard regime.

Probing Floquet topological phases via non-Hermitian skin effect of reflected waves

Fangqiao Ye and Haiping Hu

Phys. Rev. B 114, 034310 (2026) - Published 16 July, 2026

Here, the authors theoretically propose an approach to probe Floquet topological phases utilizing the non-Hermitian skin effect of reflected waves. They demonstrate that in periodically driven systems, unique topological signatures are robustly encoded in the reflection signals at the boundaries. This work provides a practical framework for experimentally identifying nonequilibrium topological phenomena without needing bulk measurements.

Microscopic NMR evidence for successive antiferroelectric and antiferromagnetic order in the van der Waals magnet CuCrP2S6

C. S. Saramgi, L. F. Prager, S. Selter, Y. Shemerliuk, S. Aswartham, B. Büchner, H.-J. Grafe, and K. M. Ranjith

Phys. Rev. B 114, 034413 (2026) - Published 10 July, 2026

The layered van der Waals magnet CuCrP2S6 hosts a sequence of ordering phenomena. Here, the authors use nuclear magnetic resonance to provide direct microscopic fingerprints of its successive phase transitions, revealing the emergence of a quasi-antiferroelectric state, long-range antiferroelectric order, and antiferromagnetic order upon cooling. The results uncover the microscopic signatures of successive electric and magnetic ordering transitions in a van der Waals material and provide insight into the interplay between electric and magnetic order in layered quantum materials.

Room-temperature two-dimensional ferromagnetism, large magnetic anisotropy, and anomalous Hall effect: From supported to freestanding monolayers GdM2 (M=Cu, Ag, Au)

Jia-wan Li, Xunwu Hu, Dao-Xin Yao, and Yusheng Hou

Phys. Rev. B 114, 034419 (2026) - Published 17 July, 2026

Here, the authors demonstrate that decoupling rare-earth GdM2 (M=Cu, Ag, and Au) monolayers from metallic substrates transforms low-temperature supported surface alloys into room-temperature ferromagnets. Substrate removal enhances magnetic exchange interactions through charge redistribution, and eliminating structural buckling further modifies the competing exchange interactions. Freestanding GdAu2 exhibits perpendicular magnetic anisotropy and a symmetry-tunable anomalous Hall effect, providing a platform for two-dimensional magnetic and topological spintronics.

Proximate spin liquid ground state arising from competing stripy and 120 spin correlations in the triangular quantum antiferromagnet ErMgGaO4

S. H.-Y. Huang, S. Petit, B. Yuan, Z. W. Cronkwright, C. Pinvidic, Y. Wang, E. M. Smith, S. Bhattacharya, C. Yang, J.-M. Zanotti, Q. Berrod, M. B. Stone, A. I. Kolesnikov, R. J. Cava, E. Kermarrec, and B. D. Gaulin

Phys. Rev. B 114, 034421 (2026) - Published 21 July, 2026

ErMgGaO4 is a quantum antiferromagnet, wherein pseudospin-½ degrees of freedom decorate two-dimensional triangular planes. Powder ErMgGaO4 shows a freezing transition near Tg ~ 2.5 K, about 1/6 of its Curie-Weiss temperature. The authors observe here a continuum of inelastic neutron scattering, and estimate are its spin-Hamiltonian within a theoretical J1-J2-Δ model. This places ErMgGaO4 close to the quantum phase boundary between the expected spin liquid and the stripy ordered phases. Elastic scattering shows two-dimensional Warren lineshapes near Tg, which elucidate the competition between stripy and 120° spin correlations.

Transient localization from fractionalization: Vanishingly small energy transport in gapless quantum magnets

Shi Feng, Penghao Zhu, Johannes Knolle, and Michael Knap

Phys. Rev. B 114, 034423 (2026) - Published 21 July, 2026

Disorder-free localization is usually associated with dynamics far from equilibrium. Here, the authors uncover a new mechanism in the low-energy sector of clean, gapless quantum magnets: transient localization from mass-imbalanced fractionalization. Studying the dynamical response in the gapless phase of a translation-invariant Kitaev ladder model, they show that fractionalization creates a coherent superposition of quasistatic flux-disorder configurations in the ground state, preserving translation symmetry while strongly suppressing correlation spreading and energy transport.

ARTICLES

Structure, structural phase transitions, mechanical properties, defects

Melting behavior of MgSiO3, CaSiO3, and SiO2 at Earth's mantle conditions based on machine learning potentials

Chuan Wang, Bo Chen, Dongdong Kang, Qiyu Zeng, and Jiayu Dai

Phys. Rev. B 114, 034101 (2026) - Published 1 July, 2026

Emergent in-plane polar vortex state in a perovskite superlattice

Shiji Xu, Xin Wang, Bin Xu, Binhua Zhang, and Changsong Xu

Phys. Rev. B 114, 034103 (2026) - Published 6 July, 2026

Ab initio modeling and experimental analysis of contrast in broadband coherent anti-Stokes Raman spectroscopy: A case study on ferroelectric domain walls

Robin Buschbeck, Mike N. Pionteck, Naomi Herrmann, Michael Rüsing, Susanne C. Kehr, Simone Sanna, and Lukas M. Eng

Phys. Rev. B 114, 034104 (2026) - Published 1 July, 2026

Highly antisymmetric scale-free skin effects in coupled four-layer Hatano-Nelson models

Wen-Hao Zhu, Jia-Wang Chen, Xi-Hui Li, Yu-Ping Lai, Xunda Jiang, Yi-Xin Xiao, Yongyao Li, and Shi-Qiao Wu

Phys. Rev. B 114, 034105 (2026) - Published 6 July, 2026

Origin of muon spin relaxation and frequency shift in frozen water explained by spin-dipole quantum coherences

Amba Datt Pant, Akihiro Koda, Burkhard Geil, Katsuhiko Ishida, Anjan Dahal, Anup Shrestha, Hari Shankar Mallik, Jumpei G. Nakamura, Shoichiro Nishimura, Masatoshi Hiraishi, and Koichiro Shimomura

Phys. Rev. B 114, 034106 (2026) - Published 7 July, 2026

Higher-order topological type-II hyperbolic lattices

Liren Chen, Jinglin Liu, Jingming Chen, Bolun Huang, and Zhen Gao

Phys. Rev. B 114, 034107 (2026) - Published 7 July, 2026

Observing complementary Lucas sequences using non-Hermitian zero modes

Li Ge

Phys. Rev. B 114, 034108 (2026) - Published 7 July, 2026

Ternary H-C-N compounds at high pressure featuring sp3-hybridized C-N networks

Bole Chen, Siyu Jin, Cheng Lu, and Andreas Hermann

Phys. Rev. B 114, 034109 (2026) - Published 7 July, 2026

Melting phase relation of seifertite and pyrite-type SiO2 determined by machine learning potentials

Doyoon Park, Xin Deng, and Jie Deng

Phys. Rev. B 114, 034110 (2026) - Published 8 July, 2026

Observation of twofold degenerate acoustic Landau levels and pseudospin-dependent transport

Ding Jia, Shuai Gu, Yin Wang, Longxu Wang, Haoran Xue, and Hong-Xiang Sun

Phys. Rev. B 114, 034112 (2026) - Published 15 July, 2026

Ferroelastic domain wall motion and collective domain switching in RbSCN

V. Soprunyuk, A. Tröster, J. Pils, W. Schranz, I. Rychetsky, A. Klic, and M. A. Carpenter

Phys. Rev. B 114, 034113 (2026) - Published 17 July, 2026

Combined low-frequency elastodynamics and resonant ultrasound spectroscopy on RbSCN across its improper ferroelastic phase transition reveal superelastic softening and, uniquely, a discontinuous Young’s modulus jump with frequency-dependent damping at T* < Tc, mimicking a first-order transition. Thermal cycling above T* erases ferroelastic domains. A compressible pseudospin model links T* to collective domain switching when the critical pinning stress σc(T) falls below the applied stress, yielding σc(T) in excellent accord with experiment.

Semimetal He-rich compounds at terapascal pressures

Shengchao Qiu, Hairui Ding, Haixu Cui, Shiyang Liu, Xiang-Feng Zhou, and Xiao Dong

Phys. Rev. B 114, 034114 (2026) - Published 27 July, 2026

Path-dependent nucleation and growth mechanisms in graphite-to-diamond transformation

Chengke Xu, Qiong Peng, Hongyang Liu, Ke Wu, Fangyu Guo, Bo Chen, Qunchao Tong, Qiyu Zeng, Dongdong Kang, and Jiayu Dai

Phys. Rev. B 114, 034115 (2026) - Published 27 July, 2026

Predictive dislocation mobility in high-entropy alloys without driven molecular dynamics: A quantum statistical approach

B. Gurrutxaga-Lerma and J. E. Arnold

Phys. Rev. B 114, 034116 (2026) - Published 27 July, 2026

Dislocation mobility in concentrated alloys is normally extracted from driven molecular dynamics, one costly simulation per data point. Here the authors obtain it instead from equilibrium lattice dynamics: integrating out the phonons on the Keldysh contour gives a causal memory kernel, whose zero-frequency limit is the dislocation’s phonon drag coefficient. The authors show drag to vary non-monotonically with composition, and that averaging the chemistry discards a positive variance term, so effective medium estimates underpredict drag by about 2 to 8.

Multiple spin-flop transitions and magnetoelectric coupling in Co-substituted CuCrP2S6

Dingyu Li, Donger Cheng, Ziyi Zhou, Shuixian Qu, Wenhao Li, Jiaqiang Wang, Qisheng Jiang, Juping Xu, Wu Xie, Ping Miao, Wen Yin, Xinzhi Liu, and Yue Zheng

Phys. Rev. B 114, 034117 (2026) - Published 28 July, 2026

Role of small-radius and high-electronegativity A-site dopants in enhancing proton transport and stability of perovskite electrolytes

Hang Ma, Ying Liang, and Tianxing Ma

Phys. Rev. B 114, 034118 (2026) - Published 29 July, 2026

Scale-dependence and the line bundle regime in continuum dislocation dynamics

Joseph Pierre Anderson and Anter El-Azab

Phys. Rev. B 114, 034119 (2026) - Published 30 July, 2026

Inhomogeneous, disordered, and partially ordered systems

Eigenstate thermalization and spectral imprints of many-body systems in projected local observables

Shivam Mishra, C Jisha, and Ravi Prakash

Phys. Rev. B 114, 034202 (2026) - Published 6 July, 2026

Identifying mobility edge from finite temperature spectral form factor

Basudha Roy, Adway Kumar Das, and Anandamohan Ghosh

Phys. Rev. B 114, 034203 (2026) - Published 6 July, 2026

Many-body non-Hermitian quasiperiodic systems with power-law hopping: Localization, topology, and the skin effect

Aditi Chakrabarty, Sanchayan Banerjee, Tapan Mishra, and Sanjoy Datta

Phys. Rev. B 114, 034204 (2026) - Published 6 July, 2026

Stability of the symmetry-protected topological phase and Ising transitions in a disordered U(1) quantum link model on a ladder

Mykhailo V. Rakov, Luca Tagliacozzo, Maciej Lewenstein, Jakub Zakrzewski, and Titas Chanda

Phys. Rev. B 114, 034205 (2026) - Published 13 July, 2026

Thermodynamic modes of a quasiperiodic mobility-edge system in a quantum Otto cycle

Ao Zhou, Feng Lu, Shujie Cheng, and Gao Xianlong

Phys. Rev. B 114, 034206 (2026) - Published 15 July, 2026

Observation of π/3 and 2π/3 modes in an acoustic Floquet system

Zheng-bo Cheng, Hong-xiang Sun, Shou-qi Yuan, Zheyu Cheng, and Baile Zhang

Phys. Rev. B 114, 034207 (2026) - Published 16 July, 2026

Floquet topological systems support boundary states pinned at discrete quasienergies. Here, the authors experimentally realize Floquet edge states with fractional quasienergies π/3 and 2π/3 in an acoustic waveguide array, establishing a new family of fractional Floquet edge states beyond the conventional 0 and π quasienergy paradigm.

Localization and universality of three-dimensional pseudospin-s fermions

Arpan Gupta and Gargee Sharma

Phys. Rev. B 114, 034209 (2026) - Published 23 July, 2026

Design principles for enhanced quantum transport with site-dependent noise

Maggie Lawrence, Elise Wang, and Dvira Segal

Phys. Rev. B 114, 034210 (2026) - Published 24 July, 2026

Chains with ramped or disordered energy profiles exhibit suppressed coherent quantum transport. Incoherent processes, however, can partially overcome this suppression. Here, the authors optimize transport in chains with power-law tunneling as a function of individual site dephasing rates. The dynamics are simulated using the Lindblad quantum master equation, with gradient ascent employed for optimization. The study identifies distinct strategies for enhancing transport in different models. For chains with ramped energy landscape, an alternating pattern of site-dependent dephasing optimizes transport.

Dynamics, dynamical systems, lattice effects

Tailoring dynamical quantum phase transitions via double-mode squeezing manipulation

Kaiyuan Cao, Haodong Wang, Xiang-Ping Jiang, Shu Chen, and Jian Wang

Phys. Rev. B 114, 034301 (2026) - Published 6 July, 2026

Inelastic neutron scattering signatures of chiral phonons

Tingting Wang, Jun Zhou, Qingyong Ren, and Lifa Zhang

Phys. Rev. B 114, 034302 (2026) - Published 6 July, 2026

Promising thermoelectric properties of quasi-one-dimensional phosphorus-based materials by tuning the chainlike twisting

Jiang-Jiang Ma, Dan Zhang, Rong-Rong Ma, Changsheng Min, Zhihong Yuan, Xiao-xiao Zhang, Peng-Fei Liu, Yu Zhou, Jingyu Li, and Wen Yin

Phys. Rev. B 114, 034303 (2026) - Published 6 July, 2026

Anomalous mass effect and coherent phonon transport in layered ternary chalcogenides XScY2 (X=Li, Na; Y=Se, Te)

Shuangshuang Luan, Yinchang Zhao, Jun Ni, and Zhenhong Dai

Phys. Rev. B 114, 034304 (2026) - Published 6 July, 2026

Majorana string simulation of nonequilibrium dynamics in two-dimensional lattice fermion systems

Matteo D'Anna, Jannes Nys, and Juan Carrasquilla

Phys. Rev. B 114, 034305 (2026) - Published 10 July, 2026

Simulating the real-time dynamics of fermionic systems remains a major open problem at the core of understanding materials, chemistry, and other strongly correlated systems. Here, the authors present Majorana propagation, a Heisenberg-picture algorithm that evolves observables in a Majorana-string basis. Benchmarks against tensor network methods and recent quantum experimental data show that the method provides accurate results in the strongly interacting regime in two-dimensional lattices, a notoriously classically hard regime.

Floquet control of electron and exciton transport in Kekulé-distorted graphene

Sita Kandel and Godfrey Gumbs

Phys. Rev. B 114, 034306 (2026) - Published 13 July, 2026

Symmetry-protected phonon nodal networks and surface states in cubic binary MX (M=Sc, Y, La and X=Sb, Bi) compounds

Aiswarya T and G. Vaitheeswaran

Phys. Rev. B 114, 034307 (2026) - Published 13 July, 2026

Entanglement dynamics in minimal Kitaev chains

Vimalesh Kumar Vimal and Jorge Cayao

Phys. Rev. B 114, 034308 (2026) - Published 14 July, 2026

Ultrafast nonthermal suppression of ferroelectricity by carrier screening in LiNbO3

Man Tou Wong, Zhuquan Zhang, Zi-Jie Liu, and Keith A. Nelson

Phys. Rev. B 114, 034309 (2026) - Published 14 July, 2026

Probing Floquet topological phases via non-Hermitian skin effect of reflected waves

Fangqiao Ye and Haiping Hu

Phys. Rev. B 114, 034310 (2026) - Published 16 July, 2026

Here, the authors theoretically propose an approach to probe Floquet topological phases utilizing the non-Hermitian skin effect of reflected waves. They demonstrate that in periodically driven systems, unique topological signatures are robustly encoded in the reflection signals at the boundaries. This work provides a practical framework for experimentally identifying nonequilibrium topological phenomena without needing bulk measurements.

Discrete time crystal order in spin chains enabled by Floquet flat bands

Mahbub Rahaman and Analabha Roy

Phys. Rev. B 114, 034311 (2026) - Published 20 July, 2026

Spin-angle-controlled nonreciprocal nonlinear optical response in Janus Cr2I3Br3

Y. Q. Liu, Yong Peng, Junwei Zhang, M. S. Si, G. P. Zhang, and Z. M. Zhang

Phys. Rev. B 114, 034312 (2026) - Published 21 July, 2026

Open quantum system theory of muon spin relaxation in materials

Elvis F. Arguelles and Osamu Sugino

Phys. Rev. B 114, 034313 (2026) - Published 28 July, 2026

Here, the authors formulate muon spin relaxation as a non-Markovian open quantum spin problem, allowing temporally correlated magnetic noise and retarded environmental response to be treated on equal footing. Applied to Li0.73CoO2, the approach explains zero- and weak-longitudinal-field μSR spectra with a common parameter set and connects the observed relaxation to Li-driven field fluctuations.

Phonon-controlled mechanical memory via pinning and depinning of transition waves

Samuele Ferracin, Dengge Jin, Vincent Tournat, and Jordan R. Raney

Phys. Rev. B 114, 034314 (2026) - Published 30 July, 2026

Magnetism

Emergent metamagnetism and field-induced phase separation in the frustrated antiferromagnet BaErFeO4

N. T. Dang, T. P. Hoang, V. Chlan, T. Kmječ, M. Rozprým, M. Veverka, J. Kohout, L. V. Truong-Son, T. L. Phan, G. S. Rymski, D. L. Khoa, N. T. M. Duc, D. P. Kozlenko, S. E. Kichanov, E. V. Lukin, A. V. Rutkauskas, and M. H. Phan

Phys. Rev. B 114, 034401 (2026) - Published 6 July, 2026

Quantum spin ladder with ferromagnetic rungs in Bi2CuO3(SO4)

Rodolfo A. Rangel Hernandez, Kirill Yu. Povarov, Sergei Zvyagin, Oleg I. Siidra, Alexander A. Tsirlin, and Victoria A. Ginga

Phys. Rev. B 114, 034402 (2026) - Published 6 July, 2026

Devil's staircase magnetic spirals in Ni2xCoxScSbO6

Kunlang Ji, Elena Solana-Madruga, Angel M. Arevalo-Lopez, Pascal Manuel, and J. Paul Attfield

Phys. Rev. B 114, 034403 (2026) - Published 6 July, 2026

Switching magnetic spin states using small magnetic fields in compositionally complex Sm(Ti,Cr,Mn,Fe,Co,Ni,Cu)O3

R. K. Dokala, M. Geers, P. Nordblad, R. Clulow, and R. Mathieu

Phys. Rev. B 114, 034404 (2026) - Published 6 July, 2026

Topological magnon Hall effect: The perspective of angular momentum conservation

Huibin Jiang (姜惠彬), Hongbin Wu (武宏斌), and Jin Lan (兰金)

Phys. Rev. B 114, 034405 (2026) - Published 6 July, 2026

Structural origins of effective anisotropy in stripe domain formation

Ruoying Wang, Mengchen Liu, Xiaoyu Wang, Jie Xu, Lining Pan, Jianan Li, Zhenyan Lu, Meihong Liu, and Derang Cao

Phys. Rev. B 114, 034406 (2026) - Published 6 July, 2026

Charge disproportionation as a possible mechanism towards polar antiferromagnetic metal in molecular orbital crystal

Yang Shen, Shuai Qu, Gang Li, Pu Yu, and Guang-Ming Zhang

Phys. Rev. B 114, 034407 (2026) - Published 6 July, 2026

Asymmetric reversal and quantized helical modes in ultrathin magnetic nanotubes with interfacial Dzyaloshinskii-Moriya interaction

B. Mimica-Figari, F. Brevis, D. Cortés-Ortuño, R. A. Gallardo, and P. Landeros

Phys. Rev. B 114, 034408 (2026) - Published 6 July, 2026

Manifestation of asymmetric manganite-ruthenate interfaces

Haoming Ling, Xin Du, Zhixiong Deng, Kai Hu, Qiangtao Sui, Zixin Fan, Lingyuan Kong, Dingyi Li, Shaojie Tai, Wei Li, Yan Liang, Pan Chen, Kai Liu, Zhaoliang Liao, Meng Meng, Xiaoran Liu, Zhen Wang, and Jiandi Zhang

Phys. Rev. B 114, 034409 (2026) - Published 6 July, 2026

Multistage development of short-range spin correlations and weak magnetic order in the two coupled trillium lattices of K2Fe2(MoO4)(PO4)2

J. Khatua, Sritharan Krishnamoorthi, Changhyun Koo, Gyungbin Ban, Taeyun Kim, Yugo Oshima, Marc Uhlarz, John Wilkinson, Peter J. Baker, Kyeong Jun Lee, Mani Shankar, Seo Hyoung Chang, R. Sankar, and Kwang-Yong Choi

Phys. Rev. B 114, 034410 (2026) - Published 8 July, 2026

Anisotropic Heisenberg model close to the Ising limit: Triangular lattice versus effective models

M. Ulaga, J. Kokalj, T. Tohyama, and P. Prelovšek

Phys. Rev. B 114, 034411 (2026) - Published 8 July, 2026

Quantum geometry, localization, and topological bounds of spin fluctuations

Carlos Saji and Roberto E. Troncoso

Phys. Rev. B 114, 034412 (2026) - Published 10 July, 2026

Microscopic NMR evidence for successive antiferroelectric and antiferromagnetic order in the van der Waals magnet CuCrP2S6

C. S. Saramgi, L. F. Prager, S. Selter, Y. Shemerliuk, S. Aswartham, B. Büchner, H.-J. Grafe, and K. M. Ranjith

Phys. Rev. B 114, 034413 (2026) - Published 10 July, 2026

The layered van der Waals magnet CuCrP2S6 hosts a sequence of ordering phenomena. Here, the authors use nuclear magnetic resonance to provide direct microscopic fingerprints of its successive phase transitions, revealing the emergence of a quasi-antiferroelectric state, long-range antiferroelectric order, and antiferromagnetic order upon cooling. The results uncover the microscopic signatures of successive electric and magnetic ordering transitions in a van der Waals material and provide insight into the interplay between electric and magnetic order in layered quantum materials.

Fermi-liquid behavior and characteristic temperature-dependent susceptibility in clean single crystal RuO2

Shubhankar Paul, Atsutoshi Ikeda, Hisakazu Matsuki, Giordano Mattoni, Jörg Schmalian, Kunihiko Yamauchi, Chanchal Sow, Shingo Yonezawa, and Yoshiteru Maeno

Phys. Rev. B 114, 034414 (2026) - Published 10 July, 2026

Single-crystal growth and magnetic, magnetoelectric, and optical properties of ferroaxial-type SrMn2Ni6Te3O18

Ryoya Nakamura, Shinichiro Asai, Yusuke Nambu, Takatsugu Masuda, and Kenta Kimura

Phys. Rev. B 114, 034415 (2026) - Published 14 July, 2026

Coexisting paramagnetic spins and long-range magnetic order in Ba4(Ru0.92Ir0.08)3O10

Farhan Islam, Jiasen Guo, Wei Tian, Bing Li, Xudong Huai, Thao T. Tran, Gang Cao, Zachary Morgan, and Feng Ye

Phys. Rev. B 114, 034416 (2026) - Published 16 July, 2026

Snowflake-like sixfold angle-dependent magnetoresistance in the kagome antiferromagnet Gd3TiBi5

Ruwen Wang, Zhen Zhao, Xinwei Yi, Yuhang Zhang, Ke Zhu, Haisen Liu, Senhao Lv, Chenyu Bai, Gang Cao, Lihong Bao, Hui Guo, Guojing Hu, Xiaoli Dong, Xiao Lin, Haitao Yang, and Hong-Jun Gao

Phys. Rev. B 114, 034417 (2026) - Published 16 July, 2026

Quantum melting of spin-1 dimer solid induced by interchain couplings

Yi Xu (徐熠), Tianfu Fu, Juraj Hasik, and Andriy H. Nevidomskyy

Phys. Rev. B 114, 034418 (2026) - Published 17 July, 2026

Room-temperature two-dimensional ferromagnetism, large magnetic anisotropy, and anomalous Hall effect: From supported to freestanding monolayers GdM2 (M=Cu, Ag, Au)

Jia-wan Li, Xunwu Hu, Dao-Xin Yao, and Yusheng Hou

Phys. Rev. B 114, 034419 (2026) - Published 17 July, 2026

Here, the authors demonstrate that decoupling rare-earth GdM2 (M=Cu, Ag, and Au) monolayers from metallic substrates transforms low-temperature supported surface alloys into room-temperature ferromagnets. Substrate removal enhances magnetic exchange interactions through charge redistribution, and eliminating structural buckling further modifies the competing exchange interactions. Freestanding GdAu2 exhibits perpendicular magnetic anisotropy and a symmetry-tunable anomalous Hall effect, providing a platform for two-dimensional magnetic and topological spintronics.

Room-temperature antiferromagnetic resonance in NaMnAs

Jan Dzian, Stáňa Tázlarů, Ivan Mohelský, Florian Le Mardelé, Filip Chudoba, Jiří Volný, Jan Wyzula, Amit Pawbake, Simone Ritarossi, Riccardo Mazzarello, Philipp Ritzinger, Jakub Železný, Karel Výborný, Klára Uhlířová, Benoît Grémaud, Andrés Saúl, Clément Faugeras, Martin Veis, and Milan Orlita

Phys. Rev. B 114, 034420 (2026) - Published 20 July, 2026

Proximate spin liquid ground state arising from competing stripy and 120 spin correlations in the triangular quantum antiferromagnet ErMgGaO4

S. H.-Y. Huang, S. Petit, B. Yuan, Z. W. Cronkwright, C. Pinvidic, Y. Wang, E. M. Smith, S. Bhattacharya, C. Yang, J.-M. Zanotti, Q. Berrod, M. B. Stone, A. I. Kolesnikov, R. J. Cava, E. Kermarrec, and B. D. Gaulin

Phys. Rev. B 114, 034421 (2026) - Published 21 July, 2026

ErMgGaO4 is a quantum antiferromagnet, wherein pseudospin-½ degrees of freedom decorate two-dimensional triangular planes. Powder ErMgGaO4 shows a freezing transition near Tg ~ 2.5 K, about 1/6 of its Curie-Weiss temperature. The authors observe here a continuum of inelastic neutron scattering, and estimate are its spin-Hamiltonian within a theoretical J1-J2-Δ model. This places ErMgGaO4 close to the quantum phase boundary between the expected spin liquid and the stripy ordered phases. Elastic scattering shows two-dimensional Warren lineshapes near Tg, which elucidate the competition between stripy and 120° spin correlations.

Domains and domain walls in amorphous ferrimagnetic alloys across the compensation temperature

Laura van Schie, Giacomo Sala, Min-Gu Kang, Nicholas Meinhardt, Marta D. Rossell, Christian Degen, and Pietro Gambardella

Phys. Rev. B 114, 034422 (2026) - Published 21 July, 2026

Transient localization from fractionalization: Vanishingly small energy transport in gapless quantum magnets

Shi Feng, Penghao Zhu, Johannes Knolle, and Michael Knap

Phys. Rev. B 114, 034423 (2026) - Published 21 July, 2026

Disorder-free localization is usually associated with dynamics far from equilibrium. Here, the authors uncover a new mechanism in the low-energy sector of clean, gapless quantum magnets: transient localization from mass-imbalanced fractionalization. Studying the dynamical response in the gapless phase of a translation-invariant Kitaev ladder model, they show that fractionalization creates a coherent superposition of quasistatic flux-disorder configurations in the ground state, preserving translation symmetry while strongly suppressing correlation spreading and energy transport.

Quantum decay of magnons in the unfrustrated honeycomb Heisenberg model

Calvin Krämer, Dag-Björn Hering, Vanessa Sulaiman, Matthias R. Walther, Götz S. Uhrig, and Kai Phillip Schmidt

Phys. Rev. B 114, 034424 (2026) - Published 27 July, 2026

Laser-induced controllable magnetic order switching and spin injection in altermagnets

Jie Ma

Phys. Rev. B 114, 034425 (2026) - Published 31 July, 2026

Stabilization of zigzag order in NiPS3 via positive biquadratic interaction

Qiang Luo, Shuhang Yang, Xiaoying Wang, Mengdong Li, Zhengyu Jiang, Chunlan Ma, and Yan Zhu

Phys. Rev. B 114, 034426 (2026) - Published 31 July, 2026

Superfluidity and superconductivity

Ferroelectricity in a magnon Bose-Einstein condensate: Nonreciprocal superfluidity, exceptional points, and Majorana bosons

Kazuki Yamamoto, Takuto Kawakami, and Mikito Koshino

Phys. Rev. B 114, 034501 (2026) - Published 1 July, 2026

Raman response of collective modes in multicomponent superconductors

Yuki Yamazaki and Takahiro Morimoto

Phys. Rev. B 114, 034502 (2026) - Published 1 July, 2026

Parity readout in Majorana box qubits from the dispersive to the resonant regime

Sara M. Benjadi and Reinhold Egger

Phys. Rev. B 114, 034503 (2026) - Published 6 July, 2026

Growth and hydrostatic pressure study of the single-crystal type-II superconductor Bi2Ta3S6

Chenglin Li, Yaling Yang, Zhilong Yang, Junze Deng, Ruihan Zhang, Weiwei Chen, Yue Pan, Yulong Wang, Xuhui Wang, Bosen Wang, Zhijun Wang, and Gang Wang

Phys. Rev. B 114, 034504 (2026) - Published 6 July, 2026

Apparent double Tc from a single Berezinskii-Kosterlitz-Thouless transition in anisotropic phase-only models

Pei-Yuan Cai and Yi Zhou

Phys. Rev. B 114, 034505 (2026) - Published 8 July, 2026

Multigap superconductivity in HgS under pressure

Pietro Maria Forcella, Cesare Tresca, Antonio Sanna, and Gianni Profeta

Phys. Rev. B 114, 034506 (2026) - Published 14 July, 2026

Beyond the random phase approximation in electron-hole bilayer superfluidity

Filippo Pascucci, Stefania De Palo, Sara Conti, David Neilson, Andrea Perali, and Gaetano Senatore

Phys. Rev. B 114, 034508 (2026) - Published 20 July, 2026

Extended Bose-Hubbard model on small grids: Exact diagonalization and Monte Carlo studies

Gabriele Costa, Matteo Ciardi, Fabio Cinti, and Santi Prestipino

Phys. Rev. B 114, 034509 (2026) - Published 22 July, 2026

Flux trapping in NbTiN strips

Ruiheng Bai, Aliakbar Sepehri, Yen-Lee Loh, Anne-Marie Valente-Feliciano, Anna Herr, Quentin Herr, and Katja C. Nowack

Phys. Rev. B 114, 034510 (2026) - Published 29 July, 2026

Possible enhancement of superconductivity in ambient-pressure La3Ni2O7 thin films

Yichen Hua, Wenxin He, Wei-Qiang Chen, Jian-Jian Miao, and Changming Yue

Phys. Rev. B 114, 034511 (2026) - Published 29 July, 2026

Optimal Majoranas in mesoscopic Kitaev chains

M. Alvarado, R. Seoane Souto, Maria José Calderón, and Ramón Aguado

Phys. Rev. B 114, 034512 (2026) - Published 29 July, 2026

Intrinsic and tunable superconducting diode effect in quantum spin Hall systems

Samuele Fracassi, Simone Traverso, Stefan Heun, Maura Sassetti, Matteo Carrega, and Niccolo Traverso Ziani

Phys. Rev. B 114, 034513 (2026) - Published 30 July, 2026

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