Topological phase transitions can be remarkably induced purely by manipulating gain and loss mechanisms, offering a novel approach to engineering topological properties. Recent theoretical studies have revealed gain-loss-induced topological disclination states, along with the associated fractional c…

[Phys. Rev. B 113, 134108] Published Fri Apr 10, 2026

We examine the relation between the quantum Landau-Lifshitz equation ($q$-LL) [Wieser, Phys. Rev. Lett. 110, 147201 (2013)] and quantum Landau-Lifshitz-Gilbert equation ($q$-LLG) [Liu et al., Phys. Rev. Lett. 133, 266704 (2024)], two nonlinear purity preserving master equations that extend classical ato…

[Phys. Rev. B 113, 134305] Published Fri Apr 10, 2026

Magnetic frustration in kagomé lattice materials has attracted considerable attention as a source of novel magnetic properties and magnetotransport phenomena. Here we report experimental evidence for collinear ferrimagnetic ordering and multiple field-induced magnetic transitions in $\mathrm{T}{\mathrm{b}}_3\mathrm{R}{\mathrm{u}}_4\mathrm{A}{\mathrm{l}}_{12}$ with …

[Phys. Rev. B 113, 134417] Published Fri Apr 10, 2026

We predict the realization of ultrastrong coupling between magnons of antiferromagnets and photons in superconductor/antiferromagnet/superconductor heterostructures at terahertz frequencies, from both quantum and classical perspectives. The hybridization of the two magnon modes with photons strongly…

[Phys. Rev. B 113, 134418] Published Fri Apr 10, 2026

We present a generalized mean-field description of spinor polariton fluids and introduce a model that incorporates pure energy relaxation, while conserving particle number. This model constitutes the spinor extension of our quantum-hydrodynamic theory, enabling a consistent treatment of two-componen…

[Phys. Rev. B 113, 134513] Published Fri Apr 10, 2026

We investigate the interplay between spin currents and spin waves in nanofabricated Permalloy waveguides with geometrical constrictions. Using propagating spin-wave spectroscopy, micromagnetic simulations, and analytical modeling, we provide experimental evidence that spin-wave phase can be modulate…

[Phys. Rev. B 113, 144416] Published Fri Apr 10, 2026

Efficient spin-to-charge is crucial for developing high-performance spintronic devices, such as terahertz (THz) emitters and spin batteries. Here, we demonstrate that precise engineering of the Pt layer in $\mathrm{FeNi}/\mathrm{Pt}/\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{e}}_3$, using scalable magnetron sputtering, significantly enhances conversion efficie…

[Phys. Rev. B 113, 144417] Published Fri Apr 10, 2026

Topological aspects in altermagnets have come into focus recently, and tuning the antiferromagnetic state into an altermagnetic phase remains an active frontier. We realize both within a rutile superlattice here in this paper. With first-principles calculation, we show that a uniaxial strain of only…

[Phys. Rev. B 113, 144418] Published Fri Apr 10, 2026

The properties of spin fluctuations in antiferromagnets are largely unexplored, in particular at ultrafast timescales. Here, we employ femtosecond noise correlation spectroscopy to experimentally study magnetization fluctuations in the canted antiferromagnet $\mathrm{S}{\mathrm{m}}_{0.7}\mathrm{E}{\mathrm{r}}_{0.3}\mathrm{Fe}{\mathrm{O}}_3$ across its spin-reorientat…

[Phys. Rev. B 113, 144419] Published Fri Apr 10, 2026

We investigate the effects of Cr off-stoichiometry on the structural, magnetic, thermodynamic, and electrical transport properties of the antiferromagnetic compound CrSb. Single-phase hexagonal NiAs-type structure is stabilized only in the Cr-rich regime, where excess Cr atoms preferentially occupy …

[Phys. Rev. B 113, 144420] Published Fri Apr 10, 2026

Electrical control of superconductivity is a central goal for next-generation superconducting electronics. Here, the authors demonstrate polarization-tunable supercurrent in an asymmetric ferroelectric Josephson junction: reversing the ferroelectric polarization switches the junction between high- and low-critical-current states, enabling nonvolatile, low-power control of superconducting transport. This study provides an alternative route toward controllable superconducting devices without relying on magnetism, and offers theoretical insights into superconducting memory and logic applications.

[Phys. Rev. B 113, 144503] Published Fri Apr 10, 2026

Research on the electrical transport properties of iron mononitrides (FeN), including ${\gamma }^{\prime \prime }\text{−}\mathrm{FeN}$ and ${\gamma }^{\prime \prime \prime }\text{−}\mathrm{FeN}$, has been hindered by difficulties in fabricating single-phase samples. In this study, nitrogen-deficient ${\gamma }^{\prime \prime }\text{−}\mathrm{FeN}$ and ${\gamma }^{\prime \prime \prime }\text{−}\mathrm{FeN}$ epitaxial films were successfully grown on ${\mathrm{Al}}_2{\mathrm{O}}_3\left(0001\right)$ substrates.…

[Phys. Rev. B 113, 155120] Published Fri Apr 10, 2026

Recently, a variational wave function based on the tensor representation of backflow corrections along with a Lanczos step has achieved state-of-the-art energy precision for Fermi-Hubbard-type models. However, solving the Fermi-Hubbard model remains challenging, and the validity of any method must b…

[Phys. Rev. B 113, 155121] Published Fri Apr 10, 2026

We study a ferromagnetic XXZ Heisenberg model on a Lieb lattice. A set of exact eigenstates is constructed based on the restricted spectrum generating algebra (RSGA) when a resonant staggered magnetic field is applied. These states are identical to the eigenstates of a system of two coupled angular …

[Phys. Rev. B 113, 155122] Published Fri Apr 10, 2026

Neural quantum states (NQS) have emerged as a promising approach to solve second-quantized Hamiltonians, because of their scalability and flexibility. In this work, we design and benchmark an NQS impurity solver for the quantum embedding (QE) methods, focusing on the ghost Gutzwiller approximation (…

[Phys. Rev. B 113, 155123] Published Fri Apr 10, 2026

The weak interlayer bonding in van der Waals layered materials results in low energy barriers for sliding and twisting, facilitating access to diverse metastable stacking configurations. Since stacking order governs crystal symmetry and physical properties, it serves as an extra degree of freedom fo…

[Phys. Rev. B 113, 155202] Published Fri Apr 10, 2026

Quantum thermodynamics defines the ideal quantum thermoelectric, with maximum possible efficiency at finite power output. However, such an ideal thermoelectric is challenging to implement experimentally. Instead, here we consider two types of thermoelectrics regularly implemented in experiments: (i)…

[Phys. Rev. B 113, 155304] Published Fri Apr 10, 2026

${\mathrm{SnP}}_2{\mathrm{Se}}_6$, a recently synthesized two-dimensional (2D) polar semiconductor, exhibits significant discrepancies in reported carrier mobilities between experimental and theoretical studies. Here, based on first-principles calculations, we first investigate the electron-phonon (el-ph) scattering-limited …

[Phys. Rev. B 113, 155417] Published Fri Apr 10, 2026

We propose a superconducting phase-difference-free approach to realizing second-order topological superconductivity in bilayers of coupled two-dimensional electron gases. In this setup, one layer hosts Rashba and the other hosts Dresselhaus spin-orbit coupling. With proximity-induced conventional $s$-…

[Phys. Rev. B 113, 155418] Published Fri Apr 10, 2026

Density functional theory (DFT) in chemistry and materials science aims for “chemical accuracy,” but this goal is challenged by the need to approximate the exact exchange-correlation (XC) energy functional. The restored-regularized strongly constrained and appropriately normed (${\mathrm{r}}^2\mathrm{SCAN}$), meta-general…

[Phys. Rev. B 113, 165115] Published Fri Apr 10, 2026

We present a comprehensive theoretical analysis of the spin-dependent thermoelectric properties of a double quantum dot system coupled to a topological superconducting nanowire and ferromagnetic leads. The study focuses on the behavior of the Seebeck coefficient and its spin-resolved counterparts, w…

[Phys. Rev. B 113, 165116] Published Fri Apr 10, 2026

Isometric tensor network states (isoTNS) generalize the isometric form of the one-dimensional matrix product states (MPS) to tensor networks in two and higher dimensions. Here, the authors introduce an alternative isometric form for isoTNS by incorporating auxiliary tensors to represent the orthogonality hypersurface. The authors demonstrate the viability of the method by performing ground-state search and real-time evolution of the transverse field Ising model on large square lattices of up to 1250 sites.

[Phys. Rev. B 113, 165117] Published Fri Apr 10, 2026

Classical U(1) fracton spin liquids feature an extensive ground state degeneracy and follow an effective description in terms of a tensor Gauss's law where charges, so-called fractons, have restricted mobility. Here we introduce a simple spin model that realizes such a state by straightforward discr…

[Phys. Rev. B 113, 165118] Published Fri Apr 10, 2026

Using matrix product state techniques we study the nonequilibrium dynamical response of the half-filled Hubbard ladder when subject to an optical pump. Optical pumping offers a way of producing and manipulating new strongly correlated phenomena by suppressing existing magnetic correlations. The ladd…

[Phys. Rev. B 113, 165119] Published Fri Apr 10, 2026

With the intriguing coexistence of local magnetic orders and nonlocal valence bond patterns, unconventional magnetic plateau phases in geometrically frustrated quantum systems have attracted significant attention. This work investigates the spin-1/2 anisotropic kagome antiferromagnet, uncovering an …

[Phys. Rev. B 113, L140405] Published Fri Apr 10, 2026

We present far-infrared magnetospectroscopy measurements of a HgTe quantum well in the inverted band structure regime over the temperature range of 2 to 60 K. The particularly low electron concentration enables us to probe the temperature evolution of all four possible optical transitions originatin…

[Phys. Rev. B 113, L161108] Published Fri Apr 10, 2026

Open quantum systems governed by non-Hermitian effective Hamiltonians exhibit unique phenomena, such as the non-Hermitian skin effect, where eigenstates localize at system boundaries. We investigate this effect in a Rashba nanowire coupled to a ferromagnetic lead and demonstrate that it can be detec…

[Phys. Rev. B 113, L161405] Published Fri Apr 10, 2026

Feldspar is the most abundant mineral group in the Earth's continental crust and almost invariably contains ${\mathrm{Fe}}^{3+}$ impurities in natural samples. These impurities dominate the characteristic deep-red luminescence of feldspar, while the host lattice itself also exhibits intrinsic luminescence associate…

[Phys. Rev. B 113, 134107] Published Thu Apr 09, 2026

Critical points with emergent symmetry exhibit intriguing scaling properties induced by two divergent length scales, attracting extensive investigations recently. We study the driven critical dynamics in three-dimensional $q$-state clock models, in which the ordered phase breaks the $Z_q$ discrete symmet…

[Phys. Rev. B 113, 134303] Published Thu Apr 09, 2026

The quantum Pontus-Mpemba effect (QPME) is a counterintuitive phenomenon wherein a quantum system relaxes more rapidly through a two-step evolution protocol than through direct evolution under a symmetric Hamiltonian alone. In this protocol, the system first evolves under a symmetry-breaking Hamilto…

[Phys. Rev. B 113, 134304] Published Thu Apr 09, 2026

Electronic properties of van der Waals materials are highly sensitive to their stacking modes. To explore sliding effects in the two-dimensional (2D) spintronics, we construct a magnetic tunnel junction (MTJ) using sliding bilayer graphene or $h$-BN as barriers and the recently synthesized room-temper…

[Phys. Rev. B 113, 134415] Published Thu Apr 09, 2026

The metallic skyrmion magnet GdRu${}_2$Si${}_2$ exhibits a fascinating sequence of complex and topological spin textures. Here, the authors focus on the recently discovered high-temperature phase, denoted phase VI. Using ultrasound techniques, they map precise phase boundaries and reveal a strong dependence of phase VI on the field direction. They further present evidence of tetragonal symmetry breaking driven by the magnetic order parameter in this phase.

[Phys. Rev. B 113, 134416] Published Thu Apr 09, 2026

Identifying superconducting materials with strong electron phonon coupling and high critical temperatures under ambient pressure constitutes a frontier in contemporary condensed matter physics. Here, we report a pioneering investigation of the influence of carrier concentration and phonon softening …

[Phys. Rev. B 113, 134512] Published Thu Apr 09, 2026

Recently, tensor gauge fields and their coupling to fracton phases of matter have attracted more and more research interest, and a series of novel quantum phenomena arising from the coupling has been predicted. Here, we propose a tunable platform using a one-dimensional dipole-conserving Bose-Hubbar…

[Phys. Rev. B 113, 144305] Published Thu Apr 09, 2026

Antiferromagnetic materials with spin splitting have attracted considerable attention for their symmetry-enabled anisotropic spin textures that sustain a zero net magnetization, thereby facilitating efficient spin-current generation. In this work, the highly efficient generation of nonrelativistic s…

[Phys. Rev. B 113, 144414] Published Thu Apr 09, 2026

The success of a quantum annealing algorithm requires a polynomial scaling of the energy gap. Recently it was shown that a two-dimensional transverse-field Ising model on a square lattice with nearest-neighbor $\pm J$ random coupling has a polynomial energy gap in the symmetric subspace of the parity ope…

[Phys. Rev. B 113, 144415] Published Thu Apr 09, 2026

It was recently reported that heavy-ion irradiation to layered ferromagnetic insulators $\mathrm{Cr}X{\mathrm{Te}}_3$ ($X=\mathrm{Si}$ and Ge) produces amorphous ferromagnetic metals with approximately three times higher transition temperatures ($T_C$) than those of single crystals. This high-$T_C$ metallic state is reminiscent of the cor…

[Phys. Rev. B 113, 155116] Published Thu Apr 09, 2026

In this work, we show that suitably designed spatially varying linearly polarized light provides a versatile route to generate and control pseudomagnetic fields in Weyl semimetals through Floquet engineering. Within a high-frequency expansion, we derive an effective axial gauge potential ${\mathit{A}}_5\left(\mathit{r}\right)$ whose…

[Phys. Rev. B 113, 155117] Published Thu Apr 09, 2026

We study the robustness of topological ground state degeneracy to long-range interactions in quantum many-body systems. We focus on slowly decaying two-body interactions that scale like a power law $1/r^{\alpha }$ where $\alpha$ is smaller than the spatial dimension; such interactions are beyond the reach of known st…

[Phys. Rev. B 113, 155118] Published Thu Apr 09, 2026

We assess the accuracy of the cumulant expansion (CE) method, combined with the independent-particle approximation (IPA), for calculating charge mobility in electron-phonon systems. As representative testbeds, we consider the Peierls and Fröhlich models, which serve as simplified frameworks where ac…

[Phys. Rev. B 113, 155119] Published Thu Apr 09, 2026

Understanding how crystal symmetry governs phonon-phonon scattering is essential for predicting heat transport in two-dimensional semiconductors. While most studies focus on three-phonon (3ph) interactions, growing evidence shows that four-phonon (4ph) processes can be equally important for thermal …

[Phys. Rev. B 113, 155416] Published Thu Apr 09, 2026

The nonequilibrium Green's function (NEGF) formalism is a powerful tool to study the nonequilibrium dynamics of correlated lattice systems, but its applicability to realistic system sizes and long timescales is limited by unfavorable memory scaling. While compressed representations, such as the rece…

[Phys. Rev. B 113, 165113] Published Thu Apr 09, 2026

Based on first-principles calculations combined with theoretical analysis, we identify a family of monolayer chromium-based group-IV chalcogenides as a new class of two-dimensional (2D) magnetic higher-order topological insulators (HOTIs). Specifically, the $\mathrm{CrC}{X}_3$ ($X=\mathrm{S}$, Se, Te) and ${\mathrm{CrSiS}}_3$ monolayers …

[Phys. Rev. B 113, 165114] Published Thu Apr 09, 2026

Materials with low thermal conductivity effectively reduce heat dissipation, finding significant applications in thermoelectric devices and thermal barrier coatings. We report the low lattice thermal conductivity and high thermoelectric figure-of-merit ($\mathit{ZT}$) of a new ${\mathrm{PbBi}}_2{\mathrm{Te}}_4$ phase. Based on the dual…

[Phys. Rev. B 113, 165203] Published Thu Apr 09, 2026

We study a finite-length Kitaev chain coupled to a single mode photonic cavity. The topological phase of the finite-length Kitaev chain is characterized by the presence of fermion parity switching points that correspond to the degeneracy between even and odd parity ground states. Using exact diagona…

[Phys. Rev. B 113, 165410] Published Thu Apr 09, 2026

The momentum dependence of Rashba spin-orbit coupling (RSOC) is a key ingredient for engineering topological superconductors (TSCs), yet research has overwhelmingly focused on its linear-in-momentum form. This focus has restricted time-reversal invariant TSCs to helical $p$-wave states, which are char…

[Phys. Rev. B 113, L161404] Published Thu Apr 09, 2026

The coexistence of topological magnons and electrons in magnetic materials presents a compelling route toward developing low-dissipation, multifunctional spintronic devices. However, material systems enabling their simultaneous realization and control remain largely unexplored. Here, we propose the …

[Phys. Rev. B 113, 134413] Published Wed Apr 08, 2026

Nonvolatile manipulation of magnetic orderings in two-dimensional (2D) van der Waals (vdW) materials presents a promising avenue for advanced spintronic applications. Bilayer ${\mathrm{CrI}}_3$ (BL-${\mathrm{CrI}}_3$) exhibits an interlayer antiferromagnetic (AFM) ground state, distinct from the interlayer ferromagnetic (FM) o…

[Phys. Rev. B 113, 134414] Published Wed Apr 08, 2026

The miniaturization of superconducting electronics demands precise control over quasiparticle dynamics at the nanoscale. Understanding and controlling quasiparticle dynamics is essential for advancing superconducting electronics, particularly as device dimensions approach the nanoscale. Here we pres…

[Phys. Rev. B 113, 134509] Published Wed Apr 08, 2026

Josephson diode (JD) effect in Josephson tunnel junctions (JTJs) has attracted a great deal of attention due to its importance for developing superconducting-circuitry-based quantum technologies. Even though the preparation of high-quality JTJs by techniques employed in the semiconductor industry ha…

[Phys. Rev. B 113, 134510] Published Wed Apr 08, 2026

${\mathrm{Ni}}_3{\mathrm{TeO}}_6$ is a polar magnet with a pronounced magnetoelectric (ME) effect under high magnetic fields ($\approx 9\mathrm{T}$). Substitution of Ni with Co in ${\mathrm{Ni}}_3{\mathrm{TeO}}_6$ modulates the magnetic structure and reduces the critical field required to induce the ME response. In this study, we have grown single crystals of ${\mathrm{NiCo}}_2{\mathrm{TeO}}_{\mathrm{\dots }}$

[Phys. Rev. B 113, 144412] Published Wed Apr 08, 2026

Ab initio molecular dynamics (AIMD) refers to the solution of Newton's equations of motion for ions with forces ${\mathbf{f}}_i=-\partial E/\partial {\mathbf{R}}_i$ calculated from self-consistent electronic structure calculations. So-called machine-learning force field (ML-FF) schemes parametrize the potential energy surface very efficient…

[Phys. Rev. B 113, 144413] Published Wed Apr 08, 2026

Transport properties of single- and two-site mesoscopic quantum Hall (QH) circuits at high transparencies can be described in terms of the lowest-order backscattering processes, enabling a mapping to the boundary sine-Gordon model. We show that this description breaks down in circuits with four or m…

[Phys. Rev. B 113, 155411] Published Wed Apr 08, 2026

The author shows here that the parity anomaly or half quantized Hall effect is absent in two-dimensional massive Dirac fermions and, instead, is an intrinsic property of a single massless Dirac cone on a lattice. The result subverts the longstanding theory of parity anomaly in massive Dirac fermions and challenges its extensive applications in condensed matter physics, such as the quantum valley Hall effect in 2D materials and metamaterials, and the half-quantized surface Hall effect and related effects in topological insulators.

[Phys. Rev. B 113, 155412] Published Wed Apr 08, 2026

The two-dimensional (2D) materials with coexistence of Dirac points and Van Hove singularities (VHSs) provide a promising platform for seeking topological superconductivity or ferromagnetism at high critical temperatures. However, ideal examples combining electronic topological properties with super…

[Phys. Rev. B 113, 155413] Published Wed Apr 08, 2026

We develop a microscopic theory of the trion polaron: a bound state of two electrons and one hole, dressed by longitudinal optical (LO) phonons. Starting from the Fröhlich Hamiltonian, which describes the interaction of charged particles with LO phonons in three-dimensional (bulk) and two-dimensiona…

[Phys. Rev. B 113, 155414] Published Wed Apr 08, 2026

Topology and nonlinearity are deeply connected. However, whether topological effects can arise solely from the structure of nonlinear interaction terms, and the nature of the resulting topological phases, remain to large extent open questions. Here we consider a chain of parametrically driven quantu…

[Phys. Rev. B 113, 155415] Published Wed Apr 08, 2026

[Phys. Rev. B 113, 159901] Published Wed Apr 08, 2026

Understanding thermal properties of materials is fundamental to technological applications and to discovering new phenomena. In particular, advances in experimental techniques such as cold-atom measurements allow the simulation of paradigmatic Hamiltonians with great control over model parameters, s…

[Phys. Rev. B 113, 165111] Published Wed Apr 08, 2026

Kagome metals provide a material platform for probing new correlated quantum phenomena due to the naturally incorporated linear dispersions, flat bands, and Van Hove singularities in their electronic structures. Among these quantum phenomena is the charge density wave (CDW), or the distortion of the…

[Phys. Rev. B 113, 165112] Published Wed Apr 08, 2026

We investigate the microwave absorption spectra of a split-ring resonator (SRR) based on a high-mobility two-dimensional electron system (2DES) in an AlGaAs/GaAs heterostructure. Introducing a split into the ring-shaped mesa gives rise to an additional plasmon resonance exhibiting strong polarizatio…

[Phys. Rev. B 113, 165301] Published Wed Apr 08, 2026

Topological thermal transport offers a quantum route to regulate heat flow through Berry-curvature-driven responses. However, approaches for dynamically switchable control of such transport are lacking. Here, we propose an interlayer-sliding-driven dynamical evolution mechanism to control topologica…

[Phys. Rev. B 113, 165408] Published Wed Apr 08, 2026

We report a gate-tunable magnetoresistance and nonlinear Hall effect in thin ${\mathrm{Bi}}_y{\mathrm{Sb}}_{2-y}{\mathrm{Te}}_{3-x}{\mathrm{Se}}_x$ films grown by molecular beam epitaxy. The Hall coefficient $R_H$ exhibits distinct nonlinear behavior controlled by the gate voltage: a $\sim 2\%-3\%$ increase at low field ($B\sim 0.5\mathrm{T}$), opposite slopes for positive and …

[Phys. Rev. B 113, 165409] Published Wed Apr 08, 2026

Cavity optomechanical systems enable coherent photon-phonon interactions essential for quantum technologies, yet high-performance devices have been limited to suspended structures. Here, we overcome this limitation by demonstrating cavity Brillouin optomechanics in a suspension-free racetrack micror…

[Phys. Rev. B 113, L161106] Published Wed Apr 08, 2026

The Wang-Teter (WT)-like nonlocal kinetic energy density functional (KEDF) in the framework of orbital-free density functional theory, while successful in some bulk systems, exhibits a critical Blanc-Cancès instability [J. Chem. Phys. 122, 214106 (2005)] when applied to isolated systems, where the t…

[Phys. Rev. B 113, L161107] Published Wed Apr 08, 2026

Topological point states (TPSs) have the same physical mechanism as that of the topological corner states (TCSs) in higher-order topological insulators (HOTIs) in two-dimensional (2D) systems and bring a new physical perspective and application prospect to HOTI. However, the current research on TPSs…

[Phys. Rev. B 113, 134106] Published Tue Apr 07, 2026

By combining static and dynamic measurement techniques, the authors reveal here a rich set of resonant spin wave modes due to stripe domain formations in a YIG film. The authors show how the micromagnetic state of the film greatly impacts the resonant modes observed, and provide detailed analysis of both the static and dynamic behavior using micromagnetic simulations.

[Phys. Rev. B 113, 134410] Published Tue Apr 07, 2026

The coupling between ferroelectricity and ferromagnetism in two-dimensional (2D) materials provides a promising pathway for the realization of electric-field-controlled spintronic devices. In this work, we unveil the microscopic mechanism underlying polarization-dependent magnetic anisotropy in the …

[Phys. Rev. B 113, 134412] Published Tue Apr 07, 2026

The moderate synthesis conditions of $\mathrm{Ce}{\mathrm{H}}_9$ under cold compression demonstrate its remarkable chemical precompression effect, while the single occupied $4f$ electron configuration of Ce contributes to the rich chemical and physical properties observed in cerium-bearing compounds. In collaboration with m…

[Phys. Rev. B 113, 134508] Published Tue Apr 07, 2026

Quantum fluctuations in low-spin $(S=\frac{1}{2})$ systems make them potential materials to investigate various intriguing field-induced quantum phenomena. In this context, rare-earth $\left(4f\right)$-based effective spin $(J_{\mathrm{eff}}=\frac{1}{2})$ systems with localized magnetic moments and low energy scales offer an advantage of low cri…

[Phys. Rev. B 113, 144411] Published Tue Apr 07, 2026

Superconductivity of a single two-dimensional Dirac fermion offers a natural route to topological superconductivity. While usually considered extrinsic—arising from proximity to a conventional superconductor—we investigate when a doped Dirac cone can spontaneously develop superconductivity from a sh…

[Phys. Rev. B 113, 144502] Published Tue Apr 07, 2026

Here, the authors investigate spin-orbit coupling (SOC) effects in kagome-type IAMX materials through a combination of theoretical modeling and first-principles calculations (IA = alkali metal, M = rare earth metal, and X = carbon group element). By developing a minimal four-band spinful model, the study captures SOC-induced topological phase transitions, illustrating the continuous evolution of phase diagrams and topological surface states. The model is supported by systematic DFT calculations across different materials, bridging theoretical models with real-world materials. This research serves as a valuable guide for leveraging IAMX materials in multifunctional device applications.

[Phys. Rev. B 113, 155115] Published Tue Apr 07, 2026

Two-dimensional ferroelectrics hold great promise for ultrathin, energy-efficient electronic and memory devices. Unlike homobilayers, where the number of candidate bilayers scales linearly with the number of monolayers, the vast design space of heterobilayers, combined with their intrinsically spars…

[Phys. Rev. B 113, 155410] Published Tue Apr 07, 2026

The phonon pumping effect has been studied theoretically and the frequency-dependent contribution to the magnetic damping is predicted. Here, we experimentally investigate the magnetic damping arising from phonon pumping in the ${\mathrm{LiNbO}}_3/{\mathrm{Y}}_3{\mathrm{Fe}}_5{\mathrm{O}}_{12}$ heterostructures. The broadband ferromagnetic resonance …

[Phys. Rev. B 113, L140404] Published Tue Apr 07, 2026

Using an asymmetric two-leg ladder comprising pairing and metallic chains, this Letter proves the striking power of reservoir-mediated boosting of superconductivity. Using many-body numerics on large systems at zero and finite temperature, we unravel the processes by which the metal parameters can i…

[Phys. Rev. B 113, L140501] Published Tue Apr 07, 2026

Bridgmanite (MgSiO${}_3$) is a major mantle constituent of rocky planets. Here, experimental temperature and reflectivity measurements in shock-compressed bridgmanite constrain its electrical conductivity at conditions relevant to super-Earth interiors. Comparison with prior studies indicates conductivity rises at lower pressures and temperatures than many models assume, suggesting silicate mantles may contribute to magnetic field generation over a broader range of conditions than previously believed.

[Phys. Rev. B 113, 134104] Published Mon Apr 06, 2026

Superlattice engineering has proven to be a practical approach for modulating the functional properties of oxide perovskites in both theoretical and experimental research. Recently, some nitride perovskites have been successfully synthesized; however, several of them display metallic behavior, highl…

[Phys. Rev. B 113, 134105] Published Mon Apr 06, 2026

Development of spintronic and quantum computing devices increases demand for efficient, energy saving method of spin manipulation at molecular scale. Polyoxovanadate molecular magnets being susceptible to both electric and magnetic fields may serve here as a good base material. In this paper, two is…

[Phys. Rev. B 113, 134409] Published Mon Apr 06, 2026

Here, the authors report the dichotomous nature of magnetic excitations in a field-induced intermediate state of Na${}_2$Co${}_2$TeO${}_6$, a leading candidate for a Kitaev quantum spin liquid in 3$d$-based systems. Using inelastic neutron scattering and muon experiments, they observe low-energy magnons and high-energy spinons in high magnetic fields, along with disordered spin dynamics. A revised crystal structure reveals a triangular Na layer that can better stabilize the spin liquid state under magnetic fields.

[Phys. Rev. B 113, 134411] Published Mon Apr 06, 2026

The morphotropic phase boundary (MPB) is the cornerstone of designing high-performance piezoelectric ceramics, enabling materials such as $\mathrm{Pb}\left(\mathrm{Zr},\mathrm{Ti}\right){\mathrm{O}}_3, \mathrm{Pb}\left(\mathrm{Mg},\mathrm{Nb}\right){\mathrm{O}}_3–\mathrm{PbTi}{\mathrm{O}}_3, \left(\mathrm{K},\mathrm{Na}\right)\mathrm{Nb}{\mathrm{O}}_3$-based and $\mathrm{BaTi}{\mathrm{O}}_3$-based (BT) ceramics to have excellent piezoelectric coefficients (exceeding 600 pC/N). In contrast, M…

[Phys. Rev. B 113, 144103] Published Mon Apr 06, 2026

Although thermalization is ubiquitous in nature, most theoretical studies rely on some unproven assumptions like the eigenstate thermalization hypothesis. Here, the authors rigorously show the absence of thermalization in a paradigmatic class of integrable spin chain models by solely employing the basic laws of quantum mechanics. Likewise, the occurrence of thermalization is provable after very minor, integrability preserving changes of some model parameters. In conclusion it seems unlikely that there exist simple general, and reliable thermalization criteria.

[Phys. Rev. B 113, 144304] Published Mon Apr 06, 2026

We have studied ferromagnetic resonance in amorphous trilayers of ${\mathrm{Co}}_x$(${\mathrm{Al}}_{0.70}{\mathrm{Zr}}_{0.30}{)}_{1-x}$. The trilayer composition is such that the outer layers are ferromagnetic, with distinct resonance frequencies, while the spacer layer composition is nominally paramagnetic. We observe two precessional modes, acou…

[Phys. Rev. B 113, 144410] Published Mon Apr 06, 2026

In this work, we investigate the impact of Rashba spin-orbit coupling (RSOC) on the formation of charge-density-wave (CDW) and superconducting (SC) phases in the Holstein model on a half-filled square lattice. Using unbiased finite-temperature quantum Monte Carlo simulations, we go beyond mean-field…

[Phys. Rev. B 113, 155109] Published Mon Apr 06, 2026

Recent experiments have observed superconductivity proximate to the $\nu =-2/3$ fractional quantum anomalous Hall (FQAH) insulator in twisted ${\mathrm{MoTe}}_2$. A critical open question is whether the underlying normal state is a Fermi liquid with a large Fermi surface or a strongly correlated metal with low carrier…

[Phys. Rev. B 113, 155110] Published Mon Apr 06, 2026

Multipolar interactions play a pivotal role in governing emergent phenomena in quantum materials, including multiferroics and quantum magnetism. In this work, we determine the ground-state phase diagram of the nearest-neighbor spin-$\frac{3}{2}$ bilinear-biquadratic-bicubic Heisenberg model on the square latti…

[Phys. Rev. B 113, 155111] Published Mon Apr 06, 2026

We study spin polarization induced by locally injected electric currents in a metal whose spin-orbit coupling reflects its structural chirality. We reveal both spin polarization in the bulk in the linear response and antiparallel spin polarization near the interface in the quadratic response to exte…

[Phys. Rev. B 113, 155112] Published Mon Apr 06, 2026

We perform a comprehensive study on the correlated electronic structure reconstruction of paramagnetic ${\mathrm{VI}}_3$ crystal in its rhombohedral and monoclinic structural phases. Using density-functional plus dynamical mean-field theory ($\mathrm{DFT}+\mathrm{DMFT}$) calculations, we explicitly demonstrate the importance of loca…

[Phys. Rev. B 113, 155113] Published Mon Apr 06, 2026

For the transparent transition-metal oxide ${\mathrm{LiTi}}_2{\mathrm{O}}_4$(LTO), optical and electronic spectra were investigated using a nonempirical computational approach, the quasiparticle self-consistent GW method (QSGW). The converged one-particle Hamiltonian determined the band dispersion curves, which exhibited a n…

[Phys. Rev. B 113, 155114] Published Mon Apr 06, 2026

We investigate the tunneling magnetoresistance (TMR) of a bilayer system made of $X$-wave magnets with $X=p,d,f,g,i$, where $X=d,g,i$ corresponds to altermagnets. A universal analytic formula is derived for the TMR ratio. It is proportional to $\left|J\right|/\left(N_X\mathrm{\Gamma }\right)$ for small $\mathrm{\Gamma }$, where $N_X$ is the number of the nodes of …

[Phys. Rev. B 113, 155303] Published Mon Apr 06, 2026

We propose and characterize a different class of Majorana boundary states, i.e., floating Majorana edge bands (FMEBs), which emerge in two-dimensional superconductors that break time-reversal symmetry yet host helical-like transport. In contrast to conventional chiral or helical edge modes, FMEBs fo…

[Phys. Rev. B 113, 155407] Published Mon Apr 06, 2026

The aim of this study is to theoretically investigate the loss function of ${\mathrm{layer}}_1$-hBN-${\mathrm{layer}}_2$ nanostructures, where layers 1 and 2 may be doped graphene, pristine graphene, or vacuum. This was achieved by comparing results obtained from the ab initio and massless Dirac fermion approaches and by exami…

[Phys. Rev. B 113, 155408] Published Mon Apr 06, 2026

Non-Abelian topological theory enables the classification of multigap systems and captures complex structures beyond conventional band topology. In this study, we propose a four-band non-Abelian topological insulator model in the one-dimensional ladder lattice. This model features a pair of flat ban…

[Phys. Rev. B 113, 155409] Published Mon Apr 06, 2026

Thirty years ago, Kitaev first brought together the ideas of quantum information and topological order in a landmark paper, introducing the famous toric code and its generalization, the so-called quantum double model. In some cases, this model displays non-Abelian anyons that can, in principle, perform universal topological quantum computation. Here, the authors present the first complete solution of the quantum double model (and some of its extensions), including the full eigenspectrum and its exact finite-temperature partition function.

[Phys. Rev. B 113, 165106] Published Mon Apr 06, 2026

We develop a pairing-based graph neural network for simulating quantum many-body systems. Our architecture augments a BCS-type geminal wave function with a generalized pair amplitude parametrized by a graph neural network. Variational Monte Carlo with our neural network simultaneously provides an ac…

[Phys. Rev. B 113, 165107] Published Mon Apr 06, 2026

Building on the recent success of a quantum-classical method for computing transport properties in the Holstein model with a single phonon mode [P. Mitrić et al., Phys. Rev. B 111, L161105 (2025)], we now assess its reliability in more realistic scenarios involving multiple phonon modes in the Hols…

[Phys. Rev. B 113, 165108] Published Mon Apr 06, 2026

The authors introduce here a symmetry‑indicator approach that predicts the topology of superlattice‑induced minibands in the presence of spin‑orbit coupling. By determining how superlattice harmonics determine symmetry eigenvalues at the high‑symmetry points of the folded Brillouin zone, the method yields ℤ${}_2$ indices and Chern numbers without full band‑structure calculations. The analysis reveals clear conditions under which patterned superlattices generate topological minibands — even when the parent system is topologically trivial. The criterion is applied across diverse material platforms, including thin films of topological insulators and transition metal dichalcogenides.

[Phys. Rev. B 113, 165109] Published Mon Apr 06, 2026

The authors construct here an open system setup that realizes a non-Hermitian multichannel Kondo problem. By applying multiple nonperturbative analytic and numerical methods, they identify three phases enriched by non-Hermiticity. The computed impurity entropy exceeds the free local moment value of ln2, indicating the emergence of a Yu–Shiba–Rusinov-like impurity state. The corresponding Kondo conductance exhibits an anomalous temperature scaling induced by non-Hermiticity, pointing to transport phenomena distinct from those in conventional Hermitian Kondo systems.

[Phys. Rev. B 113, 165110] Published Mon Apr 06, 2026

Point defects in two-dimensional and layered materials have attracted considerable interest as promising qubit candidates for quantum information processing due to their highly localized electronic states and spin-dependent optical properties. In this work, we use ${\mathrm{r}}^2\mathrm{SCAN}$ density functional calculati…

[Phys. Rev. B 113, 165202] Published Mon Apr 06, 2026

We investigate the optical response of Kekulé-Y graphene under uniaxial strain and carrier doping. Using a low-energy effective Hamiltonian, we show that strain reshapes the low-energy electronic structure of the Kekulé-Y phase and induces van Hove singularities at energies well below those of prist…

[Phys. Rev. B 113, 165406] Published Mon Apr 06, 2026

Floquet higher-order topological insulators (HOTIs), hosting robust corner-/hinge-localized states under periodic driving, represent a pivotal frontier in nonequilibrium topological physics. Although theoretical studies suggest that nonsymmorphic space-time symmetries could stabilize exotic Floquet …

[Phys. Rev. B 113, 165407] Published Mon Apr 06, 2026