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

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

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

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

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

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

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

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

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 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

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

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

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

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

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

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

We use large-scale density-matrix renormalization group simulations with bond dimensions up to $20000$ to determine the magnetization curves of spin-1 and spin-$\frac{3}{2}$ pyrochlore Heisenberg antiferromagnets. Both models exhibit a robust half-magnetization plateau. On the largest cubic cluster for which con…

[Phys. Rev. B 114, 154408] Published Wed Sep 09, 2026

The interaction between surface acoustic waves and spin waves may open new routes for compact and efficient passive microwave devices. The design of such devices requires understanding of the magnetoacoustic phenomena. Here, the authors use phase-resolved micro-optical imaging to detect and discriminate both types of waves in their micropatterned device. By tuning the magnetic field, the authors directly image the resonant magnetoacoustic coupling and provide experimental evidence for the coherent excitation of spin waves by the traveling acoustic wave.

[Phys. Rev. B 114, L140403] Published Wed Sep 09, 2026

The phenomenon of spin wave (SW) freezing occurs in the Damon-Eshbach mode in thin film magnetic systems, when SW phase and group velocities both go to zero, and the wave ceases to oscillate and move, preserving its shape as a domain structure pattern. This effect is related to the spin reorientatio…

[Phys. Rev. B 114, 134406] Published Tue Sep 08, 2026

The 1/9 magnetization plateau has recently been observed in the spin-1/2 kagome Heisenberg antiferromagnet (KHA) ${\mathrm{YCu}}_3{\left(\mathrm{OH}\right)}_6{\mathrm{Br}}_2\left[{\mathrm{Br}}_{1-y}{\left(\mathrm{OH}\right)}_y\right]$ (YCOB), a promising quantum spin liquid (QSL) candidate. However, the 1/9 plateau has so far been reported only in YCOB, and its microscopic origin and low-energy…

[Phys. Rev. B 114, 134407] Published Tue Sep 08, 2026

Low-dimensional systems with intrinsic magnetism have attracted significant attention because of their intriguing physical properties and potential applications in spintronic devices. Here, we present a systematic first-principles study of the magnetic properties of bulk, monolayer, bilayer, and tri…

[Phys. Rev. B 114, 134408] Published Tue Sep 08, 2026

Using exact diagonalization and variational tensor network methods, we study ground states near the ferromagnetic $\mathrm{SU}\left(3\right)$ point at $\theta =5\pi /4$ in the spin-1 bilinear-biquadratic model from a finite-size approach. In particular, two types of scale-invariant states, scale-invariant states with type-B Goldsto…

[Phys. Rev. B 114, 134409] Published Tue Sep 08, 2026

Polarization-analyzed small-angle neutron scattering (PASANS) methods are used to determine the spin arrangements and experimental length scales of magnetic correlations in ordered three-dimensional assemblies of $\sim 7.6$ nm diameter chemically homogeneous manganese ferrite nanoparticles. While the perp…

[Phys. Rev. B 114, 134410] Published Tue Sep 08, 2026

Altermagnets represent a recently identified class of magnetic materials that combine features of both ferromagnets and antiferromagnets. While they have compensated magnetic order, as in antiferromagnets, they exhibit time-reversal broken and spin-polarized bands as in ferromagnets, leading to unco…

[Phys. Rev. B 114, 134411] Published Tue Sep 08, 2026

We show that stochastic resetting may lead to finite entanglement between individual, spatially separated spins (pairwise entanglement) in the steady state of the spin chains driven periodically with frequency ${\omega }_D$. We find the presence of a critical resetting rate $r_c$ below which the steady state pair…

[Phys. Rev. B 114, 144406] Published Tue Sep 08, 2026

In this study, we investigate the structural, magnetic, and electronic properties of the copper-ruthenate-based oxide double perovskite ${\mathrm{La}}_{2\text{−}x}{\mathrm{Sm}}_x{\mathrm{CuRuO}}_6$ ($x$ = 0, 1, 2), synthesized by the solid-state reaction method. X-ray diffraction analysis reveals that all compounds crystallize in monoclinic symmet…

[Phys. Rev. B 114, 144407] Published Tue Sep 08, 2026

Elliptical skyrmions are a noncircular variant of magnetic skyrmions whose dynamics are exceptionally rich and complex owing to shape anisotropy, and they hold strong promise for next-generation spintronic devices. Our theoretical analysis and micromagnetic simulations show that, under spin-transfer…

[Phys. Rev. B 114, 144408] Published Tue Sep 08, 2026

Here, the authors reveal contrasting magnetoelastic effects in the metallic frustrated magnet CrB${}_2$: softening associated with Fermi surface nesting in compressive modes and spin-Jahn-Teller fluctuations in the shear mode. These results highlight the distinct roles of longitudinal and transverse magnetoelastic couplings in frustrated metallic magnetism.

[Phys. Rev. B 114, 144409] Published Tue Sep 08, 2026

We study the effects of a transverse magnetic field on the $J_1\text{−}{J}_2\text{−}{J}_3$ Ising model on the honeycomb lattice. By employing the cluster mean-field method, we investigate the nature of classical and quantum phase transitions, entropy accumulation, and the Grüneisen parameter focusing in the case with ferr…

[Phys. Rev. B 114, 144410] Published Tue Sep 08, 2026

Altermagnets are collinear magnetically ordered states that exhibit momentum-dependent spin splitting in the absence of net magnetization and spin-orbit coupling (SOC). Related spin-splitting patterns, however, can also emerge in noncollinear magnetic systems with large SOC. Here we show, via a micr…

[Phys. Rev. B 114, 154407] Published Tue Sep 08, 2026

Magnetism in rare-earth intermetallics is generally governed by the coupled evolution of $4f$ spin and orbital moments, which typically diminish together once long-range magnetic order vanishes. Here we show that PrGaSi provides a clear exception to this paradigm. The Pr-$4f$ orbital magnetic moment doe…

[Phys. Rev. B 114, 154409] Published Tue Sep 08, 2026

We theoretically study direct current generation in a quantum spin chain induced by spinon excitations by light irradiation. We consider a $S=1/2$ one-dimensional (1D) antiferromagnetic XXZ model with magnetoelectric coupling that describes multiferroics with broken inversion symmetry. We perform the …

[Phys. Rev. B 114, 134405] Published Fri Sep 04, 2026

Rare-earth-based frustrated magnets have attracted significant attention as excellent candidates for magnetic refrigeration operating at subkelvin temperatures. Herein we investigate the magnetic ground states and low-temperature magnetocaloric effect (MCE) of frustrated Shastry-Sutherland ${\mathrm{Gd}}_2{\mathrm{Be}}_2\mathrm{Ge}{\mathrm{O}}_{\mathrm{\dots }}$

[Phys. Rev. B 114, 144404] Published Fri Sep 04, 2026

${\mathrm{MnBi}}_2{\mathrm{Te}}_4$ and ${\mathrm{MnBi}}_4{\mathrm{Te}}_7$ are antiferromagnetic topological insulators belonging to the ${\mathrm{MnBi}}_{2n}{\mathrm{Te}}_{3n+1}$ series, where structural layering provides a natural route to tune magnetic interaction in van der Waals magnets. Despite extensive interest in their topological properties, how the insertion of ${\mathrm{Bi}}_2{\mathrm{Te}}_3$ q…

[Phys. Rev. B 114, 144405] Published Fri Sep 04, 2026

Understanding the microscopic mechanisms of energy exchange between lattice and spin degrees of freedom is fundamental to the development of next-generation spintronic and magnonic devices. Here we employ transient absorption (TA) spectroscopy to investigate the nonequilibrium spin dynamics in antif…

[Phys. Rev. B 114, 154404] Published Fri Sep 04, 2026

Magnetic pyrochlore oxides exhibit various unconventional electronic phases and excitations due to geometric frustration. Recently, a collective magnetic excitation was reported in Raman spectroscopy on a pyrochlore ruthenate ${\mathrm{Nd}}_2{\mathrm{Ru}}_2{\mathrm{O}}_7$. However, its origin remains unclear as the Ru magnetic ground st…

[Phys. Rev. B 114, 154405] Published Fri Sep 04, 2026

Ultrafast spin dynamics in ferrimagnets underpin high-speed spintronic devices that combine rapid magnetic dynamics with finite magnetization for electrical detection. Here we investigate the ultrafast magnetization and lattice dynamics in ferrimagnetic antiperovskite ${\mathrm{Mn}}_4\mathrm{N}$ epitaxial thin films on ${\mathrm{Sr\dots }}_{}$

[Phys. Rev. B 114, 154406] Published Fri Sep 04, 2026

Excited states play a central role in determining the physical properties of quantum matter, yet their accurate computation in many-body systems remains a formidable challenge for numerical methods. While neural quantum states have delivered outstanding results for ground-state problems, extending t…

[Phys. Rev. B 114, 134404] Published Thu Sep 03, 2026

The search for candidate Kitaev materials has largely focused on $4d$ and $5d$ transition-metal compounds with various lattice geometries. In contrast, investigations of rare-earth $4f$ systems have thus far been restricted mainly to honeycomb and triangular lattices. In this work, we investigate the rare…

[Phys. Rev. B 114, 144403] Published Thu Sep 03, 2026

It has been suggested that the anisotropic behavior of orbital transport can be distinct from that of the spin counterpart. On another front, the microscopic mechanisms underlying the anomalous Hall effect and the spin Hall effect are generally categorized into the intrinsic Berry curvature mechanis…

[Phys. Rev. B 114, 134402] Published Wed Sep 02, 2026

We investigated the rare-earth triangular-lattice antiferromagnet ${\mathrm{NdMgAl}}_{11}{\mathrm{O}}_{19}$ using single-crystal magnetization (1.8 K $\le T\le$ 300 K, ${\mu }_{0}H\le 7\mathrm{T}$) and specific-heat measurements down to 45 mK. The dc susceptibility confirms a well-isolated Kramers doublet ground state with pronounced Ising-type anisotropy, …

[Phys. Rev. B 114, 134403] Published Wed Sep 02, 2026

The temperature-dependent intrinsic magnetic properties of ${\mathrm{SmCo}}_5$ and its Fe- or Cu-doped compounds are systematically investigated via atomistic spin simulations. For pristine ${\mathrm{SmCo}}_5$, Curie temperature $T_{\text{C}}$ and effective anisotropy constant $K_1^{\text{eff}}$ at 0 K are calculated as 1000 K and $35\mathrm{MJ}\text{/}{\mathrm{m}}^3$, respectivel…

[Phys. Rev. B 114, 144401] Published Wed Sep 02, 2026

Two-dimensional (2D) spintronics has emerged as a rapidly growing field due to its potential for the precise manipulation of electron spins in nanoscale devices. In this work, we investigate the magnetic properties of Janus $\text{CrI}X$ ($X=\mathrm{Cl}$, Br) monolayers using first-principles calculations and atomistic…

[Phys. Rev. B 114, 144402] Published Wed Sep 02, 2026

Metallic systems with geometrically frustrated magnetic lattices are of considerable interest due to the exotic ground states that emerge from competing interactions and structural constraints that suppress conventional magnetic order. Here we report the synthesis and magnetic phase diagram of a sui…

[Phys. Rev. B 114, 154401] Published Wed Sep 02, 2026

For the van der Waals magnet ${\mathrm{Fe}}_3{\mathrm{GeTe}}_2$, although a ferromagnetic ground state has been reported, there are also reports of complex magnetic behavior suggesting coexistence of ferromagnetism and antiferromagnetism due to the intricate interaction between ${\mathrm{Fe}}^{+3}$ and ${\mathrm{Fe}}^{+2}$ ions in this system. The exact na…

[Phys. Rev. B 114, 154402] Published Wed Sep 02, 2026

Here, optical spin angular momentum is extended to nonmonochromatic electromagnetic fields, revealing that specific polychromatic configurations exhibit photonic spin precession governed by a Landau–Lifshitz-like equation. A precessing magnetic dipole realizes source-driven spin dynamics in the near field, while bichromatic two-wave interference additionally produces nutation. A generalized spin-continuity equation shows how sources act on optical spin through torque, establishing a direct link between photonic spin and magnetization dynamics.

[Phys. Rev. B 114, 154403] Published Wed Sep 02, 2026

The large intrinsic spin current in magnetic Weyl semimetals provides a promising platform for spin-orbit torque (SOT) devices. Here, we demonstrate SOT-driven magnetization switching in a synthetic antiferromagnet (SAF) composed of a ${\mathrm{Co}}_2\mathrm{MnGa}$ (CMG)/MnGa bilayer. In this heavy metal-free structure, C…

[Phys. Rev. B 114, L140401] Published Wed Sep 02, 2026

We theoretically study the emergence of topological magnons in electron-magnon coupled systems. The magnon dispersion in a ferromagnet usually possesses an antiunitary symmetry consisting of a combination of time-reversal and spin-rotation operations in the absence of a Dzyaloshinskii-Moriya (DM) in…

[Phys. Rev. B 114, L140402] Published Wed Sep 02, 2026

Rare-earth orthovanadates ($R{\mathrm{VO}}_3$), particularly ${\mathrm{GdVO}}_3$, exhibit emergent functional properties due to the strong interplay of spin, orbital, and lattice degrees of freedom. However, synthesizing ${\mathrm{GdVO}}_3$ not only requires a relatively challenging ${\mathrm{H}}_2/{\mathrm{N}}_2$ environment at high temperature, but also its electr…

[Phys. Rev. B 114, 134401] Published Tue Sep 01, 2026

Frustration-driven quantum fluctuations, along with spin-orbit coupling and crystal electric field can give rise to exotic magnetic phenomena in rare-earth based quantum magnets. Here, we report the magnetic ground state properties of a buckled honeycomb lattice system, ${\mathrm{Nd}}_2{\mathrm{Te}}_4{\mathrm{O}}_{11}$, investigated throu…

[Phys. Rev. B 114, 074438] Published Mon Aug 31, 2026

Kagome ferrimagnets are of fundamental interest because of their tunable magnetic, electronic, and topological properties, with potential applications for quantum-enabled technologies and spintronics. Here, we present the first direct measurement of the intrinsic timescale of the spin reorientation …

[Phys. Rev. B 114, 074439] Published Mon Aug 31, 2026

The layer Hall effect (LHE) arises from the imbalanced Berry curvature distribution in different layers, which has been experimentally realized in the $\text{Mn}{\text{Bi}}_2{\text{Te}}_4$ thin films under perpendicular electric fields that break PT symmetry. Here, we present the LHE in a topological insulator heterostructure w…

[Phys. Rev. B 114, 074440] Published Mon Aug 31, 2026

Antiferromagnets provide a promising route for inducing perpendicular magnetic anisotropy (PMA) in adjacent ferromagnetic (FM) layers through exchange coupling, yet the respective roles of the magnetic phase stability, antiferromagnetic (AFM) spin configuration, and lattice distortion remain incompl…

[Phys. Rev. B 114, 084433] Published Mon Aug 31, 2026

The authors report here the coexistence of cubic and uniaxial magnetic anisotropies in thick epitaxial bcc Fe(110)/GaAs(110) films, with the latter having a magnitude comparable to that of the former. Their interplay stabilizes an in-plane easy axis along the ⟨001⟩ directions that persists throughout the film volume for thicknesses up to 100 nm. This unconventional behavior gives rise to a depth-dependent magnetic response, with perpendicular standing spin-wave modes exhibiting distinct sensitivities to different regions of the film thickness. The study further identifies anisotropic strain as the microscopic origin of the observed in-plane uniaxial anisotropy.

[Phys. Rev. B 114, 094438] Published Mon Aug 31, 2026

Magnetic anisotropy is a pivotal parameter that determines the magnetic ordering behavior and plays an important role in practical applications of magnetic materials. However, its influence on thermodynamic properties remains experimentally unexplored. As an air-stable, antiferromagnetic (AFM) van d…

[Phys. Rev. B 114, 094439] Published Mon Aug 31, 2026

The anomalous Hall effect (AHE) is a hallmark transport phenomenon in ferromagnets arising from relativistic spin-orbit interaction. Here, we report an unexpected sign reversal of the AHE in $\mathrm{Ru}/{\left[\mathrm{Co}/\mathrm{Ni}\right]}_N$ multilayers controlled by the stacking sequence of the Ru layer. When Ru is placed beneath, rathe…

[Phys. Rev. B 114, 084431] Published Fri Aug 28, 2026

Interlayer magnetic coupling in multilayered systems remains a central issue in the understanding and designing of functional low-dimensional magnetic heterostructures. In this work, we investigate the magnetic coupling between magnetostrictive layers with opposite magnetostriction constants that re…

[Phys. Rev. B 114, 084432] Published Fri Aug 28, 2026

Integrable quantum spin chains are distinguished by infinitely many nontrivial local conserved charges, whereas generic systems are expected to have none. Here, the authors prove this expectation for spin-½ chains with symmetric nearest-neighbor interactions. Outside the known integrable families, no model has even one such charge. Thus, within this class, there is no intermediate possibility: a chain is either in a known integrable family, with infinitely many such charges, or has none.

[Phys. Rev. B 114, 094437] Published Fri Aug 28, 2026

Altermagnetism represents a novel magnetic phase combining zero net magnetization with momentum-dependent spin splitting. Here, we theoretically investigate the Landau levels and magneto-optical conductivity in $d$-wave altermagnets, explicitly incorporating the orientation of the anisotropic spin-spl…

[Phys. Rev. B 114, 074437] Published Thu Aug 27, 2026

Magnetic nanoparticles (MNPs) are central to magnetic particle imaging (MPI) and magnetic hyperthermia. The intrinsic properties of MNPs critically determine the performance of each modality individually. The integration of imaging and therapy within a single MPI-hyperthermia platform is especially …

[Phys. Rev. B 114, 084427] Published Thu Aug 27, 2026

Tuning the propagation characteristics of spin waves (or magnons) is a central task in antiferromagnetic magnonics. Here, we theoretically investigate the spin-wave flat band (FB) behavior in antiferromagnetic magnonic crystals formed by a periodic Dzyaloshinskii-Moriya interaction (DMI). The condit…

[Phys. Rev. B 114, 084428] Published Thu Aug 27, 2026

Kagome lattice materials have attracted considerable attention due to their intriguing topological properties and potential applications in next-generation quantum and spintronic technologies. In particular, rare-earth permanent magnets with kagome structure provide an ideal platform that combines r…

[Phys. Rev. B 114, 084429] Published Thu Aug 27, 2026

We theoretically investigate the influence of off-diagonal dipolar interactions in the mixed-anisotropy magnet ${\mathrm{LiHo}}_x{\mathrm{Er}}_{1-x}{\mathrm{F}}_4$. Motivated by experimental observations showing an unexpectedly rapid suppression of the ferromagnetic transition temperature $T_c$ upon substitution of Ho by Er ions, we use Mont…

[Phys. Rev. B 114, 084430] Published Thu Aug 27, 2026

The distinctive symmetry properties of pure altermagnets make them natural candidates for piezomagnetism. Previous work motivated by the piezomagnetic properties of altermagnets has primarily focused on the spin magnetization response to applied strain. In this paper we study orbital piezomagnetic e…

[Phys. Rev. B 114, 094435] Published Thu Aug 27, 2026

Using propagating spin wave spectroscopy we measure the spin wave Doppler shift in patterned MgO/${\mathrm{Co}}_2\mathrm{MnSi}/\mathrm{MgO}$ thin films and determine the degree of spin polarization of the electric current. Our measurements reveal that the current is fully spin polarized in the devices. This shows that the half-met…

[Phys. Rev. B 114, 094436] Published Thu Aug 27, 2026

Pairing a ferromagnet with the MnBi${}_2$Te${}_4$ offers a promising route to efficient spin-to-charge conversion, but how well it performs across temperature had remained unmapped. Combining ferromagnetic resonance with inverse spin-Hall voltage measurements from 20–290 K, the authors show here that the spin-Hall angle stays nearly constant below approximately 130 K, then becomes unreliable as spin rectification and shifting damping take over. The results establish the material as a robust platform for cryogenic spin-orbit and topological spintronics.

[Phys. Rev. B 114, 074433] Published Wed Aug 26, 2026

We consider a coupled system of a qubit and a magnon mode in which the qubit is weakly driven. We demonstrate that the spectral steady-state responses of both the qubit and the magnon show, in addition to two sidebands split by the coupling, also a peak at the driving frequency with virtually zero l…

[Phys. Rev. B 114, 074434] Published Wed Aug 26, 2026

The authors demonstrate here that the antiferromagnetic spin-½ Heisenberg model on the ruby lattice with second-neighbor interactions realizes a simplex valence-bond crystal state. Although singlet formation on the hexagonal plaquettes of the lattice appears to be a natural choice, the system instead selects simplices composed of two neighboring triangles. An effective spin-chirality description reveals how the interplay of spin and chiral degrees of freedom associated with individual triangles stabilizes simplex-based crystal order.

[Phys. Rev. B 114, 074435] Published Wed Aug 26, 2026

The hexagonal MnTe is a prime material candidate for altermagnets, an emerging class of magnetic compounds characterized by the nontrivial interplay of antiparallel spin arrangements with their underlying crystal structures. Recognizing precise knowledge of crystal symmetry as the cornerstone of the…

[Phys. Rev. B 114, 074436] Published Wed Aug 26, 2026

We generalize the classic Néel diagram and identify another type of ferrimagnetic phase that remains fully magnetically compensated below the Curie temperature, forming a continuous line of compensated points. It exhibits zero net magnetization while retaining nonrelativistic, eV-scale reciprocal sp…

[Phys. Rev. B 114, 094434] Published Wed Aug 26, 2026

Physical observables of a macrosystem are functions of state variables that uniquely define the macroscopic state. However, the explicit impact of these variables on the behaviors of magnetoresistance (MR) has not been fully explored. Here, angular-dependent MR of textured cobalt (002) films, which …

[Phys. Rev. B 114, 074431] Published Tue Aug 25, 2026

Altermagnetic multiferroics represent an emerging class of materials that exhibit unique symmetry-protected spin splitting in the absence of net magnetization, holding great promise for spintronic applications. However, achieving deterministic and nonvolatile electric control over their spin-splitti…

[Phys. Rev. B 114, 074432] Published Tue Aug 25, 2026

Magnon-phonon coupling has attracted considerable interest because of its potential applications in hybrid quantum systems and magnonic devices. Here, the authors show that the coupling constant evolves from real to complex as the external magnetic field is reduced, thereby causing a pronounced minimum in phonon transmittance near zero field. The results demonstrate that the phase and magnitude of the complex coupling constant can be tuned with magnetic field in strongly damped magnets, offering a platform for exploring novel regimes of magnon-phonon interaction.

[Phys. Rev. B 114, 084426] Published Tue Aug 25, 2026

In fully compensated ferrimagnets (FCFs), the coexistence of vanishing net magnetization and spin polarization provides a unique platform for spintronics. However, their realization remains hindered by the stringent sublattice constraints and electron-counting requirements. Here, we propose a design…

[Phys. Rev. B 114, 094432] Published Tue Aug 25, 2026

Magnetic noise spectroscopy provides direct access to spontaneous magnetization fluctuations in correlated magnetic systems. Here, the authors investigate how demagnetizing fields influence magnetic noise spectra. By combining magnetic noise and ac susceptibility measurements across samples of different sizes and shapes, they show that sample geometry plays a decisive role in the measured fluctuations and must therefore be treated as a key experimental control parameter when probing intrinsic dynamics. Their results underscore the importance of boundary conditions and establish a framework for quantitatively comparing magnetic noise measurements with microscopic theories.

[Phys. Rev. B 114, 094433] Published Tue Aug 25, 2026

Kitaev interaction can generate unusual quantum states and is usually sought in compounds with strongly spin-orbit-coupled magnetic ions. Here, the authors combine neutron scattering with calculations of magnetic structure and excitations to establish sizable Kitaev and off-diagonal interactions in the spin-1 triangular magnet NiI${}_2$, with spin-orbit coupling supplied instead by surrounding iodine atoms. These interactions stabilize its canted proper-screw order and open an excitation gap. This finding extends the search for Kitaev physics into high‑spin systems with intrinsically weak ionic spin–orbit coupling.

[Phys. Rev. B 114, L080405] Published Tue Aug 25, 2026

Identifying endpoint criticality is challenging because pseudo-first-order signatures can persist over accessible system sizes and obscure the underlying scaling behavior. This difficulty is especially acute in the frustrated square-lattice $J_1–J_2$ Ising model, where the location and even the nature o…

[Phys. Rev. B 114, L080406] Published Tue Aug 25, 2026

The recent interest in non-Hermitian systems has significantly broadened their application across condensed-matter physics, offering a unique framework to explore out-of-equilibrium phenomena. Simultaneously, altermagnets have emerged as a distinct magnetic class, characterized by unconventional spi…

[Phys. Rev. B 114, 074428] Published Mon Aug 24, 2026

The Kitaev spin liquid provides a rare example of exactly solvable quantum spin liquid states. Intensive research over the past two decades has identified a variety of its candidate materials. In real materials, however, the Kitaev interaction is inevitably accompanied by additional magnetic interac…

[Phys. Rev. B 114, 074429] Published Mon Aug 24, 2026

Three-dimensional topological insulators have garnered significant attention in scientific research due to their unique electronic properties. An in-depth study has been conducted to explore the influence of iron (Fe) doping on both the magnetic properties and the topological insulating behavior of $\mathrm{\dots }$

[Phys. Rev. B 114, 074430] Published Mon Aug 24, 2026

Departing from the conventional method of coupling soft and hard magnetic phases to improve remanence, a novel paradigm is proposed, in which exchange coupling is engineered between an amorphous (Am) soft magnetic phase and a nanocrystalline (NG) hard magnetic phase. By tailoring the amorphous-to-na…

[Phys. Rev. B 114, 084423] Published Mon Aug 24, 2026

The interplay between low-dimensional quantum correlations and collective ordering is a central issue in strongly correlated quantum matter. Here, we report the magnetic properties of the verdazyl-based Ni complex $\left[\mathrm{Ni}\right(p\text{−}\mathrm{Py}\text{−}\mathrm{V}\text{−}p\text{−}\mathrm{Br}\left){}_2\right(\mathrm{EtOH}){}_2{\left({\mathrm{H}}_2\mathrm{O}\right)}_2]{\left({\mathrm{NO}}_3\right)}_2$, which realizes a three-dimensionally coupled fr…

[Phys. Rev. B 114, 084424] Published Mon Aug 24, 2026

We investigate the magnonic properties of a one-dimensional antiferromagnetic chain incorporating Dzyaloshinskii-Moriya interaction (DMI) and cross damping. By analyzing the magnetization dynamics in the linear regime, we show that the system can be mapped onto an effective modified non-Hermitian Su…

[Phys. Rev. B 114, 084425] Published Mon Aug 24, 2026

We propose a mechanism for the inverse Faraday and the inverse Cotton-Mouton effects arising from quantum geometry, characterized by the quantum metric quadrupole and the weighted quantum metric. Within a semiclassical framework based on the Boltzmann transport theory, we establish a general formali…

[Phys. Rev. B 114, 094430] Published Mon Aug 24, 2026

Radial vortex is a topological spin texture stabilized by the interfacial Dzyaloshinskii–Moriya interaction (DMI) in ferromagnetic disks. Previous investigations have shown that the doublet splitting of azimuthal modes in traditional circular vortices arises from the coupling between azimuthal spin …

[Phys. Rev. B 114, 094431] Published Mon Aug 24, 2026

Odd-parity magnetism has attracted significant interest for its unconventional spin splitting. However, a concrete microscopic route for its realization remains elusive. In this work, we propose van der Waals heterostructures of stripe antiferromagnets (sAFMs) as an ideal platform for electrically c…

[Phys. Rev. B 114, 074427] Published Fri Aug 21, 2026

As the third fundamental class of collinear magnets, altermagnets have recently attracted significant interest for their potential spintronic applications. However, realizing two-dimensional (2D) altermagnets with pure spin current remains a critical challenge. In this work, taking the experimentall…

[Phys. Rev. B 114, 084422] Published Fri Aug 21, 2026

We propose encapsulating type-A antiferromagnetic semiconductors between graphene layers to realize a gate-tunable synthetic antiferromagnet with nonrelativistic spin splitting, enabling efficient spintronic transport via graphene. Density functional theory calculations and tight-binding models of a…

[Phys. Rev. B 114, 094427] Published Fri Aug 21, 2026

The generation of spin currents and their use in controlling magnetic states are central to spintronics. In particular, out-of-plane spin polarization is highly desirable for ultrahigh density, low-power magnetic memory because it enables field-free switching of perpendicular magnetization. This can…

[Phys. Rev. B 114, 094428] Published Fri Aug 21, 2026

We investigate magnetization dynamics in time-varying ferrimagnetic (or ferromagnetic) media (TVFMs) arising from temporal modulation of the bias magnetic field. Within the Landau-Lifshitz-Gilbert framework, we derive the full time-domain magnetic susceptibility without invoking the commonly used in…

[Phys. Rev. B 114, 094429] Published Fri Aug 21, 2026

A transition from crystal-field to spin wave excitations has been experimentally observed in ${\mathrm{PrFeO}}_3$ using inelastic neutron scattering. Theoretical modeling with density functional theory and the mean field random phase approximation successfully reproduces the experimental observations and allows e…

[Phys. Rev. B 114, 074426] Published Thu Aug 20, 2026

Triangular-lattice rare-earth chalcogenides $\mathrm{NaYb}{X}_2$ ($X$ = O, S, and Se) are promising quantum spin liquid (QSL) candidates, while the exact properties of the quantum state remain elusive. In this work, we present a spin-dynamic investigation of ${\mathrm{NaYbSe}}_2$. Magnetic susceptibility and specific heat reveal…

[Phys. Rev. B 114, 084419] Published Thu Aug 20, 2026

Switching of perpendicular magnetization by spin-orbit torque underpins the next-generation spintronic technologies, particularly for nonvolatile, ultrafast, and energy-efficient data storage devices. However, the technology has been facing two major challenges, the necessity of a bias magnetic fiel…

[Phys. Rev. B 114, 084420] Published Thu Aug 20, 2026