We investigate light transport in three-dimensional disordered media composed of irregular dielectric particles using large-scale full-wave simulations. For subwavelength particles with a size parameter $kr\approx 1$ and high refractive index contrast, we observe a crossover from diffusion to a regime charac…

[Phys. Rev. B 114, 134203] Published Tue Sep 15, 2026

The giant inverse magnetocaloric effect (MCE) observed in Heusler alloys holds significant promise for magnetic refrigeration. However, its practical application is hampered by hysteresis, irreversibility, and, critically, the degradation of MCE under cyclically applied magnetic fields. In this stud…

[Phys. Rev. B 114, 134418] Published Tue Sep 15, 2026

A theoretical model for calculating the linear coupled elastic and magnetic modes of a layered structure is presented. Based on the partial wave formalism, which has been previously employed to treat acoustic and magnetic problems separately, this method incorporates the magnetoelastic interaction i…

[Phys. Rev. B 114, 134419] Published Tue Sep 15, 2026

We report on the epitaxial growth of antiferromagnetic ${\mathrm{Mn}}_2\mathrm{Au}$ on a Nb(001) substrate capped with a pseudomorphic layer of gold. We observe a layer-by-layer growth by means of medium-energy electron diffraction and confirm stoichiometry and surface structure by Auger electron spectroscopy and low-ener…

[Phys. Rev. B 114, 144416] Published Tue Sep 15, 2026

Predicting the critical temperature ($T_c$) of superconducting materials is central to the search for new superconductors. Conventional machine learning models depend on handcrafted descriptors, while existing graph neural networks do not jointly exploit superconducting category information and physico…

[Phys. Rev. B 114, 144509] Published Tue Sep 15, 2026

Elastic waves propagating can be regulated and synthesized to realize rich non-Abelian phenomena and topological phases of solid media. Therefore, this work investigates the noncommutative mechanical responses and non-Abelian nodal braiding in three-dimensional elastic wave metamaterials with dualit…

[Phys. Rev. B 114, 154107] Published Tue Sep 15, 2026

Here, the author develops a symmetry-based framework that explains why certain centrosymmetric antiferromagnets exhibit a finite anomalous Hall effect (AHE). In antipolarly distorted lattices, the inversional invariance of the spin-orbit interaction allows the antiferromagnetic state to be represented as an effective ferromagnet in a suitable local frame. This mapping naturally accounts for the emergence of conventionally ferromagnetic responses, including the AHE and a net orbital magnetization, even though the spin magnetization vanishes globally.

[Phys. Rev. B 114, 154413] Published Tue Sep 15, 2026

Three-dimensional topological insulators exhibit a quantized magnetoelectric effect described by a topological response theory. This hallmark result raises the question whether magnetoelectric effects rooted in topology also exist in lower dimensions. Here, the authors demonstrate a (quasi)topological magnetoelectric response in a class of two-dimensional antiferromagnets, which is similarly described by a topological response theory, yet in two dimensions and derived from topological semimetals. As such, the effect ultimately originates from a crystalline topological index in one dimension.

[Phys. Rev. B 114, 154414] Published Tue Sep 15, 2026

In altermagnets and fully compensated ferrimagnets, not only the electron band but also the magnon band exhibits spin splitting without net magnetization, which enables thermal activation of the magnon spin current. Here, we theoretically investigate magnetic field effects on the magnon properties o…

[Phys. Rev. B 114, 154415] Published Tue Sep 15, 2026

Floquet engineering, which involves controlling systems through time-periodic driving, is a method for coherently manipulating quantum materials and realizing dynamical states with novel functionalities. Most research in solid-state systems has focused on the use of ac-electric fields as the control…

[Phys. Rev. B 114, 165120] Published Tue Sep 15, 2026

The bulk and surface electronic structure of MoAlB(010) is studied by a combination of angle-resolved photoemission spectroscopy and density functional calculations. The observed bulk Fermi-level crossings agree with the previously reported bulk Fermi surface of the material. Additionally, we find s…

[Phys. Rev. B 114, 165121] Published Tue Sep 15, 2026

We present a finite-basis method for obtaining the one-electron Green's functions or wave functions in a general nonspherically symmetric, finite-range potential. The approach reformulates the problem in terms of a $T$ matrix with finite support, allowing the Green's functions or wave functions to be …

[Phys. Rev. B 114, 165122] Published Tue Sep 15, 2026

Two-dimensional (2D) van der Waals materials are a promising platform for exciton state engineering. In this paper, we study the properties of excitons in 2D group VI transition metal dichalcogenide semiconductors that are modified by a periodic electrostatic potential through the quadratic Stark ef…

[Phys. Rev. B 114, 165302] Published Tue Sep 15, 2026

We predict geometric magnetotransport oscillations in ballistic graphene specific for a ring-shape geometry. Using the Büttiker-Landauer formalism, we analytically obtain the local Hall and Nernst coefficients in the weak-field ballistic regime. These coefficients exhibit pronounced oscillations as …

[Phys. Rev. B 114, 165412] Published Tue Sep 15, 2026

Magneto-optical (MO) effects like Kerr and Faraday rotations provide a direct probe of topological order in thin films of the magnetic topological insulator (TI) ${\mathrm{MnBi}}_2{\mathrm{Te}}_4$ (MBT). Motivated by recent experimental studies of spin-flip/flop transitions in MBT thin films, we investigate the interplay bet…

[Phys. Rev. B 114, 165413] Published Tue Sep 15, 2026

${\mathrm{MoOCl}}_2$ is a metallic, layered van der Waals material with a strong in-plane structural anisotropy. The reflectivity of a ${\mathrm{MoOCl}}_2$ single crystal has been determined in a wide spectral range from the infrared to the visible regime. This reflectivity is extremely anisotropic, reflecting the anisotropic …

[Phys. Rev. B 114, 175120] Published Tue Sep 15, 2026

Tip-Enhanced Raman Spectroscopy (TERS) can be used to make nanoscale spatial measurements of 2D materials, such as graphene and transition metal dichalcogenides (TMDs). The TERS theory introduced in [Cançado et al., Phys. Rev. X 4, 031054 (2014)], however, was tailored for graphene, whose out-of-pla…

[Phys. Rev. B 114, 175406] Published Tue Sep 15, 2026

We investigate thermoelectric transport in monolayer graphene across a finite complex barrier within a Landauer scattering framework. Solving the Dirac–Weyl problem exactly, we show that the imaginary part of the barrier renders the scattering matrix nonunitary and replaces the usual Hermitian flux …

[Phys. Rev. B 114, 175407] Published Tue Sep 15, 2026

In trilayer transition metal dichalcogenides, strong quantum fluctuations stabilize quadrupolar excitons. This study reveals how this state breaks down due to strong correlations at high exciton densities. Attractive interactions drive antiparallel dipolar correlations, explaining the redshift to blueshift transition observed in recent experiments. Furthermore, the authors predict novel correlation driven quantum phases, specifically an exciton droplet and a staggered dipolar crystal, and detail their distinct experimental signatures to guide future experimental explorations.

[Phys. Rev. B 114, 185116] Published Tue Sep 15, 2026

Manipulating spin for quantum information and spintronic devices requires quantitative prediction of quantum transport over long time and length scales. We introduce a computational framework for first-principles density-matrix quantum transport within the Wigner function formalism that facilitates …

[Phys. Rev. B 114, 185117] Published Tue Sep 15, 2026

We investigate the pressure-induced evolution of crystal structure and magnetism in the kagome ferromagnet ${\mathrm{Fe}}_3{\text{Sn}}_2$ by combining x-ray diffraction, x-ray emission spectroscopy, x-ray magnetic circular dichroism, and spin-polarized density functional theory calculations. X-ray diffraction reveals a str…

[Phys. Rev. B 114, 185118] Published Tue Sep 15, 2026

We usually understand a critical point as occurring at a phase transition separating two distinct phases. Certain quantum many-body systems host unusual critical points that are entirely contained in a single phase of matter but are nonetheless protected for topological reasons. Here, the authors give general conditions when such “diabolical” critical points should exist and explore new types of classical phase transitions in which they might occur.

[Phys. Rev. B 114, 185119] Published Tue Sep 15, 2026

Disordered superconductors in low dimensions provide an exemplary manifestation for the role of quantum fluctuations in a many-body system. Specifically in Josephson arrays with comparable Josephson and charging energies ($E_J\sim E_C$), disorder tends to change the nature of the paradigmatic superconductor…

[Phys. Rev. B 114, 185303] Published Tue Sep 15, 2026

We consider the Bethe ansatz integrable Russian doll (RD) model of superconductivity with time-reversal symmetry breaking, which exhibits a cyclic renormalization group. By obtaining an exact solution for the renormalization group flows, we investigate the phase structure in the one-pair sector, whi…

[Phys. Rev. B 114, L140202] Published Tue Sep 15, 2026

The thermal Hall effect (THE) is a powerful probe of material properties, even in insulators. Here, we investigate the thermal response of altermagnets by developing a theory on Berry curvature driven nonlinear THE from both electrons and magnons. We identify symmetry conditions under which the thir…

[Phys. Rev. B 114, L140406] Published Tue Sep 15, 2026

Ultrashort voltage pulses drive quantum conductors into a nonadiabatic regime where the transmitted charge can oscillate with the injected pulse charge. This effect, which we refer to as dynamic charge oscillations, has been primarily associated with interferometric devices and attributed to path in…

[Phys. Rev. B 114, L171404] Published Tue Sep 15, 2026

Conventionally, enhanced spin-orbit torque (SOT) efficiency in metallic alloy systems has been achieved by the bulk spin generation mechanism of the spin Hall effect. In this study, we investigated SOT in Au-Ti alloy. While pure Au exhibits a negligible SOT, the Au-Ti alloy exhibits a high SOT effic…

[Phys. Rev. B 114, 134417] Published Mon Sep 14, 2026

We use thermal transport to access the electronic mean free path of $d$-wave quasiparticles in one of the most widely studied cuprate superconductors, ${\mathrm{Bi}}_2{\mathrm{Sr}}_2{\mathrm{CaCu}}_2{\mathrm{O}}_{8+\delta }$ (Bi2212). We have measured the thermal conductivity ${\kappa }_{\mathrm{xx}}$ and the thermal Hall conductivity ${\kappa }_{\mathrm{xy}}$ of three single crystals across a range o…

[Phys. Rev. B 114, 134508] Published Mon Sep 14, 2026

We investigate Josephson arrays consisting of a dice-lattice network of superconducting weak links surrounding rhombic plaquettes of proximitized semiconductor. Josephson coupling of the weak links and electron density in the plaquettes are independently controlled by separate electrostatic gates. A…

[Phys. Rev. B 114, 134509] Published Mon Sep 14, 2026

We propose a superconducting circuit based on the Bloch transistor, a quantum device consisting of two small-capacitance Josephson junctions, connected in series and having a small superconducting island in between. This device is driven by two dc electrical sources controlling Josephson oscillation…

[Phys. Rev. B 114, 134510] Published Mon Sep 14, 2026

Superconductivity (SC) remains a captivating field of research, promising transformative applications in energy, computing, and quantum technologies. Despite decades of investigation, the mechanisms underlying unconventional SC are not yet fully understood, motivating the discovery and study of new …

[Phys. Rev. B 114, 134511] Published Mon Sep 14, 2026

Diamond anvil cell synchrotron x-ray diffraction experiments, molecular dynamics, density functional theory, and Lindemann melting theory were used to investigate the compressibility and melting properties of $\mathrm{Ce}{\mathrm{H}}_{2-3}$. Ambient-temperature synchrotron x-ray diffraction measurements were made in diamond…

[Phys. Rev. B 114, 144105] Published Mon Sep 14, 2026

Helimagnets naturally host odd-parity spin splitting — spin locked antisymmetrically to momentum — but their theoretical description is hindered by large, sometimes incommensurate magnetic supercells. Here, the authors show that the generalized Bloch theorem removes this barrier: bands, spin polarization, and wavefunctions of any single-$q$ helimagnet can be obtained in the primitive cell and downfolded in reciprocal space. From first principles for MnI${}_2$, NiI${}_2$, and MnTe${}_2$, the authors find splitting maximized for $p$-orbital bands, and band spin texture that directly encodes the magnetic ordering vector.

[Phys. Rev. B 114, 144414] Published Mon Sep 14, 2026

Solid solutions of the rare-earth nitrides ($L{n}_{x}L{n}_{1-x}^{\prime }\mathrm{N}$, where $\mathit{Ln}, \mathit{Ln}{}^{\prime }$ are lanthanides) allow material control of the rich spin- and orbital-magnetism of the rare earths. This includes the engineering of compensation points of the net magnetic moment or net angular momentum in fully spin-aligned phas…

[Phys. Rev. B 114, 144415] Published Mon Sep 14, 2026

The discovery of superconductivity in multilayer nickelates under pressure has intensified interest in understanding the magnetic and electronic properties of Ruddlesden-Popper nickelates. Using density functional theory with Hubbard corrections, we investigate the magnetic ground state, electronic …

[Phys. Rev. B 114, 144507] Published Mon Sep 14, 2026

Previous studies have shown that $\text{SU}{\left(4\right)}_1$ chiral spin liquid can emerge in the SU(4) Hubbard model on triangular lattice. A natural question then arises: What is the phase upon doping? In this work, we show the possibility that hole doping can give rise to an anyon superconductor and propose that both…

[Phys. Rev. B 114, 144508] Published Mon Sep 14, 2026

We report a combined study of the magnetic, electrical transport, optical reflectivity, and electronic properties of single-crystalline DyPtSb, a half-Heusler antiferromagnet that orders at 2.2 K. The electrical resistivity exhibits semiconductor-like behavior and the Hall response becomes strongly …

[Phys. Rev. B 114, 154412] Published Mon Sep 14, 2026

We theoretically investigate the eigenspectrum and excitation of terahertz (THz) electromagnetic waves in a cylindrical beam-waveguide system containing a layered superconducting shell. The system is driven by a nonrelativistic tubular electron beam, which is assumed to be charge-neutralized by a st…

[Phys. Rev. B 114, 154508] Published Mon Sep 14, 2026

Altermagnets (AMs) combine fully compensated magnetization with momentum-dependent spin splitting, yet intrinsic altermagnetic materials exhibiting exceptional valley characteristics remain scarce. Here, we identify monolayer titanium-based chalcogenide halides, ${\mathrm{Ti}}_2{X}_{2}Y$ ($X=\mathrm{F}$, Cl, Br, I; $Y$ = O, S, Se,…

[Phys. Rev. B 114, 165117] Published Mon Sep 14, 2026

In chiral crystals, two types of phonon angular momenta have been introduced. One is crystal angular momentum (CAM) arising from the rotational or screw-rotational symmetry and the other is mechanical angular momentum (MAM) associated with the circular motion of atomic displacements about equilibriu…

[Phys. Rev. B 114, 165118] Published Mon Sep 14, 2026

We study the electronic and magnetic properties of monolayer ${\mathrm{Fe}}_3{\mathrm{GeTe}}_2$ within the density-functional plus dynamical mean-field theory approach in the paramagnetic phase. We argue that this compound is sufficiently far from the local magnetic moment limit, demonstrating nonlinear temperature dependenc…

[Phys. Rev. B 114, 165119] Published Mon Sep 14, 2026

A Monte Carlo framework is developed to compute the optical conductivity ${\sigma }^{xx}\left(\omega \right)$ and the Hall conductivity ${\sigma }^{xy}\left(\omega \right)$ of the spin-fermion model with thermally fluctuating local moment and is applied to study the non-Fermi-liquid transport behavior of the cuprate superconductors. Both ${\sigma }^{xx}\left(\omega \right)$ and ${\sigma }^{xy}\left(\omega \right)$ ca…

[Phys. Rev. B 114, 175118] Published Mon Sep 14, 2026

We present a temperature-dependent reflectivity study of single crystals of the ternary intermetallic compounds ${\mathrm{GdCu}}_2{\mathrm{Ge}}_2$ and ${\mathrm{GdCuAl}}_3$ over a broad spectral range ($100–18000{\mathrm{cm}}^{-1}$, equivalent to 12 meV–2.23 eV) down to 13 K. Below 2000 ${\mathrm{cm}}^{-1}$, the optical spectra are dominated by the response of itinerant…

[Phys. Rev. B 114, 175119] Published Mon Sep 14, 2026

We study the topological phase transition in a two-leg Su-Schrieffer-Heeger (SSH) ladder by redefining the unit cell structure. For both identical hopping dimerization pattern (uniform) and alternate hopping dimerization pattern (staggered) along the legs of the ladder, we demonstrate that different…

[Phys. Rev. B 114, 185113] Published Mon Sep 14, 2026

We study twisted bilayer ${\mathrm{WSe}}_2$ within a continuum moiré model and apply a method for treating finite geometries directly in the continuum framework, thereby avoiding the limitations associated with purely momentum-space formulations and Wannier obstructions. By projecting a confinement potential onto…

[Phys. Rev. B 114, 185114] Published Mon Sep 14, 2026

Spectral functions encode key many-body information but are costly to compute with high fidelity. Machine-learning surrogates have emerged as a powerful alternative, yet many approaches require large training datasets. We develop a data-efficient surrogate for spectral functions using the $t\text{−}{t}^{\prime }\text{−}{t}^{″}\text{−}J$ …

[Phys. Rev. B 114, 185115] Published Mon Sep 14, 2026

We investigate localization and the non-Hermitian skin effect in a one-dimensional nonreciprocal chain with unidirectional Aubry-André-Harper hopping. The interplay between nonreciprocity and quasiperiodic modulation produces rich localization behavior, including transitions among extended, critical…

[Phys. Rev. B 114, 185418] Published Mon Sep 14, 2026

Hexagonal MnTe has emerged as a prototypical $g$-wave altermagnet, hosting time-reversal symmetry breaking in momentum space despite a vanishing net magnetization. While this symmetry breaking theoretically allows for an intrinsic anomalous Hall effect, experimentally observed signals have remained we…

[Phys. Rev. B 114, L140405] Published Mon Sep 14, 2026

There is rich experimental evidence that granular superconductors and superconducting films often exhibit a higher transition temperature $T_c$ than that in bulk samples of the same material. This Letter suggests that this enhancement hinges on random matrix phonons mediating Cooper pairing more effici…

[Phys. Rev. B 114, L140503] Published Mon Sep 14, 2026

In this work, we introduce the concept of Majorana-like photonic molecules in higher-order topological photonic crystals. Here, we provide a route to combine the spectral control of conventional photonic molecules with gap-centered physics protected by symmetries. By projecting Maxwell's Hermitian o…

[Phys. Rev. B 114, L171106] Published Mon Sep 14, 2026

In topological phases of matter, fusion rules dictate how anyonic topological charges combine. However, the transformation of quasiparticle mobility under fusion remains largely unexplored. In this Letter, we reveal that restricted mobility classes obey their own complex multichannel fusion rules. W…

[Phys. Rev. B 114, L171107] Published Mon Sep 14, 2026

Here, the authors propose a new concept of nonlinear pure spin current rooted in quantum geometry. A pure spin current carries electron spin sideways without a net charge current in the same direction, making it attractive for low-power devices. They predict a unique property that flipping the built-in electric polarization of a nonmagnetic material can reverse the pure spin current. This flipping behavior is absent in the conventional spin Hall effect, which has impeded potential applications of the spin Hall effect in spintronics for a long time. The systematic survey here identifies five crystal symmetry classes that allow this behavior, and quantum mechanical calculations predict it in five atomically thin ferroelectrics, paving the way for experimental detection and device application. The authors also propose an optical second-harmonic Kerr microscopy test with an estimated measurable signal, providing a practical route to verify electrically programmable, low-dissipation spin transport without magnetic order.

[Phys. Rev. B 114, L171108] Published Mon Sep 14, 2026

Boron vacancies ($V_B^{-}$) in hexagonal boron nitride (hBN) have emerged as a promising platform for two-dimensional (2D) quantum sensors capable of operating at atomic-scale proximity. However, the mechanisms responsible for photoluminescence quenching in thin hBN sensing layers when placed in contact w…

[Phys. Rev. B 114, L171403] Published Mon Sep 14, 2026

We theoretically study the direct and inverse spin Hall effects in a superconductor-normal metal-superconductor junction induced by a spin-orbit interaction that is invariant under spatial inversion. We show that a supercurrent induces a spin Hall effect, leading to a static spin accumulation with o…

[Phys. Rev. B 114, 134415] Published Fri Sep 11, 2026

We report a comprehensive investigation of the quasi-one-dimensional spin-chain compound ${\mathrm{Ca}}_3{\mathrm{CoIrO}}_6$ (CCIO) using x-ray and neutron diffraction, dc and ac magnetization, specific heat, electrical resistivity, Raman spectroscopy, and polarization–electric-field measurements. The results reveal a gradua…

[Phys. Rev. B 114, 134416] Published Fri Sep 11, 2026

Pressure-induced superconductivity in ${\mathrm{FePSe}}_3$ was initially attributed to a spin-state transition, drawing parallels with magnetic fluctuation-mediated pairing in iron-based superconductors. This magnetic-centric view was later challenged by the discovery of superconductivity in nonmagnetic analogs s…

[Phys. Rev. B 114, 134507] Published Fri Sep 11, 2026

We report the magnetic properties of a series of lithium-rich antiperovskites (${\mathrm{Li}}_{2}M)Ch\mathrm{O}$ ($M=\mathrm{Fe},\mathrm{Co},\mathrm{Mn}$ and $Ch=\mathrm{Se},\mathrm{S}$), where transition metal and lithium ions are randomly distributed on the X sites of the ${\mathrm{X}}_3\mathrm{BA}$ structure, thereby forming a strongly diluted magnetic sublattice. Our study hence enables us …

[Phys. Rev. B 114, 144413] Published Fri Sep 11, 2026

The emergence of superconductivity in quasiperiodic systems poses a fundamental question: Can conventional superconductivity survive as translational symmetry is progressively lost toward the quasiperiodic limit? Quasicrystal approximants, which share the same local atomic motifs as quasicrystals wh…

[Phys. Rev. B 114, 144506] Published Fri Sep 11, 2026

The control of antiferromagnets by magnetic fields represents a fundamental challenge in condensed matter physics, owing to their fully compensated magnetic order and vanishing net magnetization. Conventional methods rely on either uncompensated moments or high-field spin-flop transitions. Here, we …

[Phys. Rev. B 114, 154411] Published Fri Sep 11, 2026

In electrides, interstitial anionic electrons (IAEs) constitute a key electronic degree of freedom whose spatial organization governs the electronic structure and emergent quantum properties. However, controlled realization of IAEs with complex topologies remains a central challenge. Here we propose…

[Phys. Rev. B 114, 154505] Published Fri Sep 11, 2026

Interior-gap superconductivity has long been discussed as an exotic paired state in the presence of Fermi-surface mismatch, but its realization in canonical strongly correlated models has remained elusive. Here we present evidence that the superconducting phase of one-dimensional Kondo-Heisenberg mo…

[Phys. Rev. B 114, 154506] Published Fri Sep 11, 2026

We identify a family of boron-rich compounds consisting of interconnected ${\mathrm{B}}_{12}$ icosahedra and electropositive guest atoms ($X$) in interstitial sites. These structures were found through first-principles crystal structure prediction at 50 GPa, and are dynamically stable down to ambient pressure. When $X$…

[Phys. Rev. B 114, 154507] Published Fri Sep 11, 2026

Inspired by the possibility that superconducting properties may be altered by applying a perpendicular electric field in the Ruddlesden-Popper (RP) bilayer nickelate ${\mathrm{La}}_3{\mathrm{Ni}}_2{\mathrm{O}}_7$ thin film, we investigated the imbalanced two-orbital bilayer Hubbard model with a layer potential bias using dynamical clust…

[Phys. Rev. B 114, 165115] Published Fri Sep 11, 2026

We study quantum transport in a periodically driven (Floquet) topological system coupled to static fermionic reservoirs. Using the Floquet nonequilibrium Green's-function (NEGF) formalism, we show, from exact numerics for a strip geometry, that the two-terminal (longitudinal) conductance is quantize…

[Phys. Rev. B 114, 165116] Published Fri Sep 11, 2026

A pointlike defect in a uniform current-carrying conductor induces a dipole in the electrochemical potential, which counteracts the original transport field. If the mean free path of the carriers is much smaller than the size of the defect, then the dipole results from the purely diffusive motion of…

[Phys. Rev. B 114, 165411] Published Fri Sep 11, 2026

An excitonic insulator represents a quantum phase in which spontaneous condensation of excitons leads to novel many-body phenomena. ${\mathrm{Ta}}_2{\mathrm{NiSe}}_5$ (TNSe), a layered narrow-gap semiconductor, has emerged as a model platform to probe these correlated excitonic phases and their underlying dynamics below 327 …

[Phys. Rev. B 114, 175115] Published Fri Sep 11, 2026

Fe-based superconductors are derived from metallic parent compounds with nematic and stripe magnetic orders, which lead to two types of magnetic domains. Recently, it was found that ${\mathrm{K}}_5{\mathrm{Fe}}_4{\mathrm{Ag}}_6{\mathrm{Te}}_{10}$ (KFAT), an Fe-based semiconductor, exhibits similar nematic and stripe magnetic orders, and is thus an an…

[Phys. Rev. B 114, 175116] Published Fri Sep 11, 2026

Quantum spin liquids (QSLs) are magnetic phases that evade long-range order down to the lowest temperatures due to strong quantum fluctuations. Their lack of conventional order parameters, however, makes experimental identification challenging. In this work, we investigate how distinct QSL phases af…

[Phys. Rev. B 114, 175117] Published Fri Sep 11, 2026

Altermagnets, collinear antiferromagnets with vanishing net magnetization yet momentum-dependent spin splitting, open a new route to topology and strong correlations. In this work, we propose a general framework to construct nearly topological flat-band (TFB) models in $d$-wave altermagnets via stacki…

[Phys. Rev. B 114, 185112] Published Fri Sep 11, 2026

Simultaneous control over the directionality and spin of light at the nanoscale is a central goal in nanophotonics with applications ranging from quantum information to advanced biosensing. We introduce the concept of the Circular Huygens dipole and numerically demonstrate its realization in a singl…

[Phys. Rev. B 114, 185415] Published Fri Sep 11, 2026

Surface charge transfer doping (SCTD) preserves the pristine crystal structure and allows precise tuning of the doping level, making it a promising strategy for modulating the properties of low-dimensional materials. In this work, we investigate the effect of surface ${\mathrm{MoO}}_3$ molecular doping on the the…

[Phys. Rev. B 114, 185416] Published Fri Sep 11, 2026

The lowest-energy exciton in some two-dimensional (2D) materials can be optically dark owing to spin, momentum, or spatial-symmetry selection rules, which suppresses its direct radiative recombination. Controlling the relative energy ordering of bright and dark states in the exciton spectrum is ther…

[Phys. Rev. B 114, 185417] Published Fri Sep 11, 2026

Here, the authors use inelastic neutron scattering to investigate gapped Dirac magnons in the van der Waals ferromagnet CrI${}_3$. With high-quality single crystals, they directly resolve the characteristic winding of magnon spectral weight around the $K$ point of the hexagonal Brillouin zone, which provides a key signature of Dirac magnons. The authors further show that the magnon energies exhibit an approximately T${}^2$ thermal renormalization, consistent with magnon-magnon interactions.

[Phys. Rev. B 114, 134413] Published Thu Sep 10, 2026

Recent numerical advances have renewed interest in the two-dimensional quantum $J_1$-$J_3$ Heisenberg antiferromagnet, but a detailed analytical theory has remained lacking. Here, the authors apply a semiclassical effective field theory and large-$N$ analysis. They show that previously overlooked interactions stabilize a quantum vestigial nematic phase at zero temperature, where discrete rotational symmetry is spontaneously broken despite the loss of long-range antiferromagnetic spiral order. This phase continues the known finite-temperature nematic phase, reflecting enhanced quantum fluctuations near the classical Lifshitz point.

[Phys. Rev. B 114, 134414] Published Thu Sep 10, 2026

We extend the equation of state and phase stability of body-centered cubic (bcc) antimony (Sb) into the multimegabar regime using both first-principles calculations up to 436 GPa and experimental synchrotron x-ray diffraction in the diamond-anvil cell up to 258(6) GPa using Ne as a soft pressure-tra…

[Phys. Rev. B 114, 144104] Published Thu Sep 10, 2026

Hidden altermagnetism was theoretically proposed and then experimentally confirmed in the metal ${\mathrm{Cs}}_{1-\delta }{\mathrm{V}}_2{\mathrm{Te}}_2\mathrm{O}$, which exhibits two nearly degenerate ground-state magnetic configurations ($C$ type and $G$ type), corresponding, respectively, to apparent and hidden altermagnetism. Here, we propose that in-pla…

[Phys. Rev. B 114, 144412] Published Thu Sep 10, 2026

Silver niobate is a conventional perovskite oxide compound, known to exhibit a rich polymorphism. Although often classified as antiferroelectric, its low-temperature structure remains unclear. Here, first-principles calculations reveal a previously overlooked and unusual rhombohedral ferroelectric p…

[Phys. Rev. B 114, 154106] Published Thu Sep 10, 2026

We report a comprehensive study of single-crystal ${\mathrm{BaNd}}_2{\mathrm{PdS}}_5$, a Shastry-Sutherland lattice (SSL) antiferromagnet. Thermodynamic and magnetization measurements identify an AFM transition at $T_N\approx 3.6\mathrm{K}$. The ${\mathrm{Nd}}^{3+}$ local-crystal-field environment imposes a rigid, mutually orthogonal Ising anisotropy, effecti…

[Phys. Rev. B 114, 154410] Published Thu Sep 10, 2026

Transport properties of strongly correlated materials have contributions from quasiparticle excitations such as electrons and holes as well as emerging collective excitations such as plasmonic soundlike modes which are sustained by interactions. It was previously shown by Pongsangangan et al. [Phys.…

[Phys. Rev. B 114, 165114] Published Thu Sep 10, 2026

The interplay between chemical bonding, lattice anharmonicity, and thermal transport plays a central role in determining the thermoelectric performance of crystalline solids. Here, we systematically investigate the structural stability, lattice dynamics, thermal transport, and thermoelectric propert…

[Phys. Rev. B 114, 165201] Published Thu Sep 10, 2026

Two-dimensional (2D) semi-Dirac bands hybridize Schrödinger and Dirac fermions, exhibiting quadratic dispersion along the $k_x$ direction and linear dispersion along the $k_y$ direction. Tilting along either direction enhances band anisotropy and can drive the corresponding Lifshitz transition when the ti…

[Phys. Rev. B 114, 165410] Published Thu Sep 10, 2026

Representing the time-evolution operator as a tensor network constitutes a key ingredient in several algorithms for studying quantum lattice systems at finite temperature or in a nonequilibrium setting. For a Hamiltonian composed of strictly short-range interactions, the Suzuki-Trotter decomposition…

[Phys. Rev. B 114, 175113] Published Thu Sep 10, 2026

The dual localized-itinerant character of uranium $5f$ electrons governs the electronic and magnetic properties of many actinide materials, yet the microscopic mechanisms controlling their tunable itinerancy remain incompletely understood. Here we investigate the uranium dipnictides $\mathrm{U}{X}_2$ ($X=\mathrm{P},\mathrm{As},\mathrm{Sb}$) us…

[Phys. Rev. B 114, 175114] Published Thu Sep 10, 2026

In the natural chalcopyrite mineral ${\mathrm{Cu}}_{1+x}{\mathrm{Fe}}_{1-x}{\mathrm{S}}_2$ ($x=0.08$), a huge Seebeck effect was reported around room temperature [Ang et al., Angew. Chem. Int. Ed. 54, 12909 (2015)]. In this paper, we suggest that the observed huge Seebeck coefficient is due to antiferromagnetic magnon drag collaborated with a…

[Phys. Rev. B 114, 175201] Published Thu Sep 10, 2026

We theoretically analyze the THz response of an electron-hole pair confined in a semiconductor nanoparticle. We show that the interplay of particle confinement and electron-hole Coulomb interaction leads to significant renormalizations and energy shifts in THz linear conductivity of the nanocrystal.…

[Phys. Rev. B 114, 175302] Published Thu Sep 10, 2026

Conventional wisdom dictates that the conducting edge states of two-dimensional topological insulators of the ${\mathrm{Bi}}_2{\mathrm{Se}}_3$ family are protected by time-reversal symmetry. However, theoretical bulk calculations and a recent experiment show that the edge states persist in the presence of large external magn…

[Phys. Rev. B 114, 175405] Published Thu Sep 10, 2026

We extend ferromagnetic resonance (FMR) modulation theory to describe systems in which bulk and boundary states of topological materials coexist, with both appearing at the same energy. As an application of the formulation, we investigate the enhancement of the Gilbert damping constant on the (110) …

[Phys. Rev. B 114, 185302] Published Thu Sep 10, 2026

Spin-orbit coupling in two-dimensional materials gives rise to a Rashba spin splitting when inversion and mirror symmetries are broken, yet its microscopic origin and quantitative characterization in transition metal dichalcogenides remain incomplete. Using first-principles calculations, we investig…

[Phys. Rev. B 114, 185413] Published Thu Sep 10, 2026

A quantitative description of the exchange interaction in quantum dots is relevant for modeling gate operations of spin qubits. By measuring the amplitude and frequency of exchange-driven qubit state oscillations, we measure the detuning dependence of the exchange coupling in a GaAs double quantum d…

[Phys. Rev. B 114, 185414] Published Thu Sep 10, 2026

Conservation laws are of paramount importance in our understanding of classical and quantum dynamics. Here, we present a general framework for constructing exact quantum integrals of motion with the desired locality and quantum numbers, which will be illustrated for the case of many-body-localizatio…

[Phys. Rev. B 114, L140201] Published Thu Sep 10, 2026

Van der Waals materials can be exfoliated into ultrathin sheets, suggesting that their magnetism should also be two-dimensional. Using resonant x-ray scattering, the authors reveal here a different picture in the Kitaev magnet RuBr${}_3$: zigzag magnetic correlations exhibit spectral weight redistribution along the interlayer direction. Bromine’s spatially extended 4$p$ orbitals strengthen interlayer magnetic interactions. The results demonstrate that an exfoliable crystal can host three-dimensional magnetism, challenging a common assumption about layered quantum materials and showing how ligand chemistry controls magnetic dimensionality.

[Phys. Rev. B 114, L140404] Published Thu Sep 10, 2026

Topological defects commonly emerge during phase transitions, with their topological charge ($s$) serving as a discrete invariant that dictates defect stability, dynamics, and ordering pathways. Liquid crystals across the nematic-smectic A (N-SmA) transition provide an ideal model for exploring how $s$ …

[Phys. Rev. B 114, 134104] Published Wed Sep 09, 2026

Lead-free halide vacancy-ordered double perovskites ${\mathrm{Cs}}_{2}B{X}_6$ have recently attracted significant attention due to their intrinsically ultralow lattice thermal conductivity (${\kappa }_{\mathrm{L}}$), which is highly desirable for thermal insulation and thermoelectric applications. In this work, we systematically investigat…

[Phys. Rev. B 114, 134304] Published Wed Sep 09, 2026

The novel class of collinear compensated magnets, dubbed altermagnets, has attracted immense research attention by the property of nonrelativistic spin splitting. More recently, the properties of altermagnets caused by relativistic spin-orbit coupling (SOC) became the topic of many investigations. T…

[Phys. Rev. B 114, 134412] Published Wed Sep 09, 2026

We theoretically demonstrate squeezed light generation in a compact, electrically driven device utilizing the nonlinear light-matter interaction of Cooper pair recombination in a hybrid superconductor-semiconductor structure. On the basis of second-order perturbation theory, we developed an effectiv…

[Phys. Rev. B 114, 134506] Published Wed Sep 09, 2026

Topological protection is weakened at armchair interfaces in quantum valley Hall systems because the two valleys mix and open a gap in the interface states. Here, the authors demonstrate that an adiabatic mass domain wall suppresses intervalley mixing, restoring robust propagation of topological interface modes throughout the bulk band gap. Experiments on silicon MEMS waveguides confirm efficient transmission through 90°, 120°, and 150° bends, establishing adiabatic geometry as a general strategy for designing versatile topological waveguides.

[Phys. Rev. B 114, 144103] Published Wed Sep 09, 2026

Disorder in moiré superlattices simultaneously degrades flat-band localization and induces Anderson localization, yet how these two regimes interact has remained unclear. Here, we introduce a combined framework linking localization‐length scaling with differential probability density analysis to map…

[Phys. Rev. B 114, 144202] Published Wed Sep 09, 2026

Long coherence times rank among the most important performance measures for many different types of quantum technology. In the electron-nuclear spin system of NV centers of diamond, the nuclear spins provide particularly long dephasing times. However, since initialization and readout require assista…

[Phys. Rev. B 114, 144411] Published Wed Sep 09, 2026

The frequency-dependent complex optical conductivity $\widehat{\sigma }\left(f\right)$ reflects key properties of superconductors, such as the energy gap $2\mathrm{\Delta }$ in the density of states (DOS) and the superfluid density $n_{\mathrm{s}}$. For disordered superconductors, $\widehat{\sigma }\left(f\right)$ often can be described within Bardeen-Cooper-Schrieffer (BCS) theory, w…

[Phys. Rev. B 114, 144505] Published Wed Sep 09, 2026

Two-dimensional ferroelectrics provide a unique platform for exploring symmetry breaking and electromechanical coupling at the atomic limit. Using first-principles calculations, we investigate the shear piezoelectric response of a black-phosphorus-like bismuth monolayer. Bismuthene exhibits a giant …

[Phys. Rev. B 114, 154104] Published Wed Sep 09, 2026