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

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 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

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

Ferroelectric semiconducting oxides are promising platforms for energy-efficient devices based on polarization direction, such as ferroelectric random-access memories and field-effect transistors. Here, by exploiting a ferroelectric polarization-controlled $p\text{−}n$ junction established between a $p$-type ${\mathrm{B\dots }}_{}$

[Phys. Rev. B 114, 165301] Published Wed Sep 09, 2026

Cascaded emission from the biexciton state of a quantum dot results in polarization entangled photon pairs. Cavity enhancement of the direct two-photon emission channel bypasses the dominant source of decoherence in this system, namely the fine-structure splitting of the exciton levels. Here, we inv…

[Phys. Rev. B 114, 185301] Published Wed Sep 09, 2026

Using the full-band $\mathbf{k}·\mathbf{p}$ Hamiltonian model and the lattice Green's function method combined with the Landauer-Büttiker formula, we investigate the magnetotransport and magnetic-field-dependent electronic structure in monolayer InSe and its nanoribbons. Landau levels of the topmost valence band of the…

[Phys. Rev. B 114, 175301] Published Tue Sep 08, 2026

Far from equilibrium, heat flux profiles can exhibit complex and rapidly evolving shapes, hindering the formulation of macroscopic heat transport equations for energy currents in nanostructured semiconductors. Here, the authors address this challenge by decomposing the phonon distribution into a smooth component that captures its slowly evolving features and an arbitrarily complex component that accounts for higher-order corrections. Combined with the Boltzmann transport equation, this decomposition enables the prediction of heat transport under extreme confinement by modeling the slowly evolving component deterministically using the finite element method, while capturing the rapidly evolving component stochastically through a Monte Carlo scheme.

[Phys. Rev. B 114, L171301] Published Tue Sep 08, 2026

Quantum interfaces are a cornerstone of photonic quantum computing protocols. They consist of quantum emitters coupled to propagating light pulses, enabling the reversible transfer of information between emitter degrees of freedom, such as energy or spin, and photonic degrees of freedom, including p…

[Phys. Rev. B 114, 115306] Published Fri Aug 28, 2026

We study nonequilibrium mode selection in dissipative exciton-polariton condensates incoherently pumped through an excitonic reservoir in the presence of pure energy relaxation. For a confined system in which the pump profile selects a vortex mode at threshold, we show that energy relaxation qualita…

[Phys. Rev. B 114, L111303] Published Thu Aug 27, 2026

Here, the authors implement the recently proposed Swing-UP of the quantum emitter population (SUPER) scheme to investigate the coherent preparation of exciton and biexciton states in GaAs quantum dots using two red-detuned laser pulses. The experiments show that, by tuning the polarization and energy of the utilized pulses, one can achieve highly efficient preparation of an individual exciton state, a coherent superposition of fine-structure-split exciton states, or the biexciton state, establishing the SUPER scheme as a versatile tool for selective quantum-state preparation.

[Phys. Rev. B 114, 105306] Published Mon Aug 24, 2026

Transition metal dichalcogenide heterostructures host long-lived interlayer excitons in the $+K$ and $-K$ valleys that can encode long-lived valley polarization. We investigated the low-temperature valley polarization dynamics in an ${\mathrm{MoSe}}_2$-bilayer hBN-${\mathrm{WSe}}_2$ heterostructure. The bilayer hBN spacer results …

[Phys. Rev. B 114, 105307] Published Mon Aug 24, 2026

Topological kink states are inherently tied to valley-based topological charges, and extending this framework is critical for enhancing quantum transport efficiency. Using tight-binding models, we demonstrate that even-spin-Chern (ESC) insulators offer a versatile platform for realizing new classes …

[Phys. Rev. B 114, 115305] Published Mon Aug 24, 2026

Phonons can carry angular momentum and exhibit chirality through the circular polarization of atomic motion. This enables a phonon-mediated spin Seebeck effect (SSE) via the conversion of phonon angular momentum into electron spin angular momentum. In this Letter, we develop a theoretical framework …

[Phys. Rev. B 114, L111302] Published Fri Aug 21, 2026

Some nanoplatelets — flat, rectangular, colloidally-grown, semiconductor nanostructures — lie in an intermediate confinement regime, where common strong and weak confinement wave function factorizations fail. However, solving the full Schrödinger equation is computationally demanding or infeasible for electron-hole complexes that require four (exciton), six (trion), or eight (biexciton) dimensions. Here, the authors invent tensor network methods to retrieve the unfactorized high-dimensional ground and excited exciton and trion states, including their oscillator strength, and low-dimensional wave function projections.

[Phys. Rev. B 114, 125310] Published Thu Aug 20, 2026

Recent advances in coherent conveyor-mode spin qubit shuttling are paving the way for large-scale quantum computing platforms with qubit connectivity achieved by spin qubit shuttles. We developed a simulation tool to investigate numerically the impact of device imperfections on the spin coherence of…

[Phys. Rev. B 114, 105305] Published Wed Aug 19, 2026

Atomic-scale surface reconstructions critically affect the performance of ${AB\text{O}}_3$ perovskites in catalysis and electronic devices. However, their structural complexity, together with the limited predictive power of existing theoretical models, makes it difficult to determine the true atomic arrangement…

[Phys. Rev. B 114, 105303] Published Mon Aug 17, 2026

We develop a model to investigate the collective dynamics and coherent interaction of exciton-polaritons and longitudinal acoustic phonons in semiconductor microcavities beyond Fermi's golden rule. Our model predicts temperature-induced dephasing and an energy redshift of exciton-polaritons together…

[Phys. Rev. B 114, 105304] Published Mon Aug 17, 2026

Interfacial engineering is an important aspect for the development of high-efficiency photoelectric devices. The microscopic interplay between lattice distortion and carrier transport remains poorly understood. This study utilizes constrained density functional theory (CDFT+$U$) and Marcus theory to b…

[Phys. Rev. B 114, 115304] Published Mon Aug 17, 2026

The interplay between band topology and nonlinear optical responses presents a promising platform for discovery, particularly for second-harmonic generation (SHG), which requires broken inversion symmetry. Here, we theoretically investigate the topological constraints on SHG in “essentially noncentr…

[Phys. Rev. B 114, 125309] Published Mon Aug 17, 2026

Topological phases characterized by non-Abelian charges have garnered increasing attention recently. Although Floquet (periodic-driving) higher-order topological phases have been explored at the single-particle level, the role of couplings in non-Abelian topological insulators with multiple entangle…

[Phys. Rev. B 114, 105302] Published Wed Aug 12, 2026

Strong light-matter interaction in localized nanocavities is pivotal for quantum optics, yet conventional multipolar coupling is frequently obscured by parasitic background scattering. Here, we investigate the non-Hermitian strong coupling of pure multipolar resonances with two-dimensional excitons …

[Phys. Rev. B 114, 125307] Published Wed Aug 12, 2026

We investigate the nonlinear Hall responses in tunable two-dimensional Dirac materials. In particular, we study quantum geometry-driven second and third-order nonlinear responses in a time-reversal symmetric Dirac semimetal that can host a single-node, a double-node, and a nodal-ring depending on th…

[Phys. Rev. B 114, 125308] Published Wed Aug 12, 2026

We have performed density functional theory (DFT) calculations to characterize the energetics, and the atomic and electronic structure, of stacking faults in GaN, both in the stable hexagonal wurtzite (wz) phase and in the metastable cubic zincblende (zb) phase. In wz GaN, SFs on the $\left\{0001\right\}$ planes c…

[Phys. Rev. B 114, 115303] Published Tue Aug 11, 2026

Shallow nitrogen-vacancy (NV) centers in diamond are useful for near-surface sensing, but the negatively charged state ${\mathrm{NV}}^{-}$ is often difficult to stabilize close to the surface. Here we study the depth dependence of NV formation and charge-state stability in nitrogen-implanted diamond using spatially…

[Phys. Rev. B 114, 125306] Published Tue Aug 11, 2026

We propose an optical scheme to realize an exciton spin supersolid in an excitonic insulator formed in atomic double layers. By coupling exciton internal levels with three spatially modulated laser fields in an inverted-tripod configuration, an effective non-Abelian gauge potential is generated for …

[Phys. Rev. B 114, 115302] Published Mon Aug 10, 2026

We derive explicit strong-field asymptotics for the normalized differential resistance in Hall field-induced resistance oscillations (HIRO) within the Vavilov-Aleiner-Glazman kinetic framework. For a single-harmonic density of states, the leading oscillation amplitude is set by the full backscatteri…

[Phys. Rev. B 114, 125304] Published Mon Aug 10, 2026

Topological degeneracies (TD) and half vortices with nontrivial charges have been widely studied in various metastructures, which mainly relies on the symmetry breaking of structures. Here, by resorting to material anisotropy rather than geometric asymmetry, we designed a layered anisotropic dielect…

[Phys. Rev. B 114, 125305] Published Mon Aug 10, 2026

Dark exciton condensates offer a long-lived platform, yet controlling their density and spatial profile remains a central challenge. We develop a spatially resolved selectivity framework for driven-dissipative bright-dark condensates controlled by the bright-dark detuning ${\mathrm{\Delta }}_{\text{bd}}$. Within an open-condens…

[Phys. Rev. B 114, 125303] Published Fri Aug 07, 2026

The authors demonstrate here electrically generated and controllable 2D-like excitons in a heterostructure where such behavior would not normally be expected, and develop an analytical model to explain the results. The potential impact is twofold: the work introduces voltage-tunable H-band electroluminescence as a new gate-defined excitonic emitter platform, and it shows that single-heterojunction devices can support unexpectedly bright electroluminescence through electrostatic confinement rather than a conventional quantum well heterostructure.

[Phys. Rev. B 114, L111301] Published Thu Aug 06, 2026

Path-integral techniques are a powerful tool for obtaining exact solutions for the non-Markovian dynamics of open quantum systems. However, the exponential scaling of the tensor size with the quantum memory length limits their applicability to systems with long memory times. Here we provide a genera…

[Phys. Rev. B 114, 125302] Published Tue Aug 04, 2026

Van der Waals heterostructures incorporating graphene have been an active area of research, both theoretical and experimental, due to their potential to yield devices with a wide variety of applications. In this paper, first-principles calculations are employed to investigate ${\mathrm{C}}_6{\mathrm{N}}_6/\text{graphene}$, $\mathrm{hg}\text{−}{\mathrm{C}}_3{\mathrm{N}}_4/\text{…}$

[Phys. Rev. B 114, 105301] Published Mon Aug 03, 2026

We investigate the adsorption geometry, binding energetics, and electronic structure of the polycyclic aromatic hydrocarbons benzene, naphthalene, and anthracene on a monolayer of ${\mathrm{MoS}}_2$ using first-principles calculations. Structural relaxations are performed within density functional theory (DFT) in…

[Phys. Rev. B 114, 115301] Published Mon Aug 03, 2026

The surface phonon Hall viscosity (PHV)—an acoustic analog of axion electrodynamics—emerges from the strain response of magnetic topological insulators and gives rise to novel acoustic phenomena. In this work, we propose a previously unexplored effect: a phonon polarization-filter mechanism induced …

[Phys. Rev. B 114, 125301] Published Mon Aug 03, 2026

We study elementary semiconductors and insulators that are symmetric under spatial inversion: silicon, diamond, germanium, and black phosphorene. These materials are ideal candidates for realizing obstructed atomic insulators, which differ from trivial atomic insulators by a quantized spatial shift …

[Phys. Rev. B 114, L051302] Published Wed Jul 29, 2026

Quantum point contact readout theory for singlet-triplet qubits in a lateral double quantum dot is extended by including tunneling of triplet configurations in a higher-energy level of the neighboring dot. This additional channel creates energetically allowed leakage pathways that modify the branch-…

[Phys. Rev. B 114, 055302] Published Tue Jul 28, 2026

The study of electron hydrodynamics provides a powerful framework for understanding transport in ultraclean conductors, yet experimental evidence has thus far been largely restricted to the linear response regime. Here, we report the direct observation of a strongly nonlinear transport regime in a h…

[Phys. Rev. B 114, 045305] Published Mon Jul 27, 2026

Coupling effects between self-assembled quantum dots in different layers separated by approximately $200\mathrm{nm}$ are studied by transient capacitance spectroscopy. This coupling manifests itself via interdependent time constants of the transients. Two different coupling mechanisms that act over such large …

[Phys. Rev. B 114, 065307] Published Mon Jul 27, 2026

Topological insulators (TIs) are highly attractive platforms for next-generation optoelectronic and photonic devices. Spin-momentum locking of topological surface states enhances their nonlinear optical responses and sensitivities, especially to circularly polarized light. Until now, theoretical inv…

[Phys. Rev. B 114, 065308] Published Mon Jul 27, 2026

We report the formation of large-scale steady-state whirlpools in a GaAs-based two-dimensional electron liquid and demonstrate them by straightforward transport measurements. A whirlpool forming inside a circular cavity adjoining a wide conducting channel appears as a negative four-terminal resistan…

[Phys. Rev. B 114, L051301] Published Thu Jul 23, 2026

The utilization of periodic driving to control nonequilibrium topological phases has garnered increasing attention in condensed matter physics. In this work, within the high-frequency limit of Floquet theory, we investigate the effects of circularly polarized light (CPL) on the topological propertie…

[Phys. Rev. B 114, 065306] Published Wed Jul 22, 2026

Transport measurements on thin films of the prototypical altermagnet MnTe have yielded conflicting reports including the anomalous Hall effect (AHE) with opposite signs and resistivity independent of thickness. In this work, we resolve these discrepancies by disentangling the bulk and surface contri…

[Phys. Rev. B 114, 065304] Published Wed Jul 15, 2026

Hydrogen (H) is a ubiquitous and electrically active impurity in semiconductors, playing a decisive role in shaping their optical and electrical properties, particularly in wide band-gap materials such as gallium nitride (GaN). Although postgrowth activation dissociates Mg-N-H complexes, a substanti…

[Phys. Rev. B 114, 065305] Published Wed Jul 15, 2026

Multiferroic tunnel junctions (MFTJs) with tunneling electroresistance (TER) and tunneling magnetoresistance (TMR) effects have emerged as promising candidates for low-power and high-density information technology. However, simultaneously achieving giant TER and TMR ratios still faces significant hu…

[Phys. Rev. B 114, 065303] Published Mon Jul 13, 2026

Spin qubits are a promising platform for quantum computation and can operate at temperatures ranging from tens of millikelvin to a few kelvin. Some recent experiments have revealed a nontrivial, often nonmonotonic dependence of the qubit frequency on temperature, including regions of reduced tempera…

[Phys. Rev. B 114, 045304] Published Fri Jul 10, 2026

Perovskite oxides ${\mathrm{ABO}}_3$ host a rich interplay of charge, spin, lattice, and orbital degrees of freedom, giving rise to diverse quantum phenomena. In low-dimensional ${\mathrm{ABO}}_3$ systems, reduced symmetry can induce exotic quantum effects such as a two-dimensional electron gas and unconventional superconducti…

[Phys. Rev. B 114, 045303] Published Wed Jul 08, 2026

Coherent spin dynamics of localized ${\mathrm{Mn}}^{2+}$ spins are studied in a single (Cd,Mn)Te/(Cd,Mg)Te diluted-magnetic-semiconductor quantum well using a two-color pump-probe Faraday rotation technique. The initial phase of the manganese Larmor precession in magnetic field is measured at the maximum of exciton…

[Phys. Rev. B 114, 065302] Published Wed Jul 08, 2026

We study charge transport across a junction between a normal metal and a Rashba metal in the presence of a Zeeman field applied to the spin-orbit coupled region. While an out-of-plane Zeeman field does not generate a transverse response in a homogeneous Rashba system, we show that such a junction ex…

[Phys. Rev. B 114, 045302] Published Tue Jul 07, 2026

The authors observe here phonon-assisted anti-Stokes photoluminescence of light-hole excitons under resonant heavy-hole excitation in a shallow GaAs/Al${}_{0.03}$Ga${}_{0.97}$As quantum well. The results reveal intersubband exciton transfer within a single high-quality nanostructure and highlight a promising route toward optical cooling of semiconductors.

[Phys. Rev. B 114, 045301] Published Mon Jul 06, 2026

The ability to compute electron-phonon coupling from first principles, using density functional perturbation theory and interpolation techniques, has enabled predictive calculations of electronic transport coefficients in crystalline materials. However, these methods are still computationally expens…

[Phys. Rev. B 114, 055301] Published Mon Jul 06, 2026

The graphene-diamond heterostructure has stimulated extensive research due to its potential applications in high-performance electronic devices. The fabrication of the graphene-diamond heterostructure by conventional methods often suffers from complex processing steps, weak interfacial adhesion, or …

[Phys. Rev. B 114, 065301] Published Mon Jul 06, 2026

In this study, we investigate the interpretation of the Stokes shift (SS) by employing the optoelectronic reciprocity relation (ORR), which provides a fundamental link between optical absorption and emission processes. We first revisit the van Roosbroeck-Shockley relation and the generalized Planck'…

[Phys. Rev. B 113, 245310] Published Mon Jun 29, 2026

The Hall effect provides a route for unidirectional manipulations of classical and quantum waves. In optics, the spin Hall effect (SHE) induced by the interaction between intrinsic angular momentum (AM) and material inhomogeneity enables AM-dependent control of light at the subwavelength scale. Desp…

[Phys. Rev. B 113, 245309] Published Thu Jun 25, 2026

We analyze a thermodynamically consistent model of Complementary metal-oxide-semiconductor-based ring oscillators near the onset of coherent voltage oscillations. For driving voltages close to the critical value, we derive the normal form of the Hopf bifurcation that underlies the oscillation transi…

[Phys. Rev. B 113, 245308] Published Wed Jun 24, 2026

Propagation of short pulses through ${\mathrm{Cu}}_2\mathrm{O}$ crystal containing Rydberg excitons is studied with the use of the density matrix formalism and the finite difference time domain method. Effects of the so-called Rydberg blockade are studied extensively, exploring not only a reduction of absorption (bleachin…

[Phys. Rev. B 113, 245307] Published Mon Jun 22, 2026

Valley splitting in strained Si/SiGe quantum wells is a central parameter for silicon spin qubits and is commonly described with envelope function and effective mass theories. These models provide a computationally efficient continuum description and agree well with atomistic approaches when the con…

[Phys. Rev. B 113, 245306] Published Thu Jun 18, 2026

Photoluminescence measurements confirmed a direct band gap of ∼1.41 eV for the cubic ${\mathrm{Na}}_2\mathrm{KSb}$ phase. At the highest excitation powers, a secondary emission peak emerged alongside the original band-edge peak, indicating the formation of a Fermi-degenerate electron-hole plasma. Polarization- and tempera…

[Phys. Rev. B 113, 245305] Published Wed Jun 17, 2026

We develop a general theory of crystal truncation rod (CTR) scattering from vicinal surfaces with a coherently strained heteroepitaxial film. The formalism incorporates film-induced interference fringes, full elastic lattice distortion, terrace ordering, surface reconstruction, and real-time growth …

[Phys. Rev. B 113, 235309] Published Tue Jun 16, 2026

We describe a case of instability of the paramagnetic order in an electron gas confined in a thin tubular semiconductor nanowire with a Rashba spin-orbit interaction. This situation is realized when, for a critical value of the Rashba coupling constant ${\alpha }_c$, dependent only on the radius of the tube, s…

[Phys. Rev. B 113, 235310] Published Tue Jun 16, 2026

We investigate the evolution of conductance quantization and subband structure in a weakly confined quasi-one-dimensional channel as a function of carrier density and perpendicular magnetic field. As the carrier density is reduced, the $2e^2/h$ plateau is progressively suppressed and an avoided crossin…

[Phys. Rev. B 113, 245304] Published Tue Jun 16, 2026

We investigate photocurrent generation in undoped $\mathrm{GaAs}/\mathrm{A}{\mathrm{l}}_{0.3}\mathrm{G}{\mathrm{a}}_{0.7}\mathrm{As}$ multiple quantum wells at room temperature using spatially resolved photocurrent mapping. Under linearly polarized excitation, the response is dominated by the photothermoelectric effect. In contrast, helicity-dependent maps under c…

[Phys. Rev. B 113, 245302] Published Mon Jun 15, 2026

We propose a symmetry-resolved optical probe of intrinsic loop-current chirality in moiré materials, with twisted bilayer graphene as a representative realization. Interlayer interference generates chiral electronic circulation on triangular plaquettes, giving rise to an intrinsic geometric chiralit…

[Phys. Rev. B 113, 245303] Published Mon Jun 15, 2026

We analyze thermally induced spin transport in $X$-wave magnets with $X=p,d,f,g$, and $i$. A prominent feature of $d$-wave altermagnets is that spin current is generated by applying a temperature gradient, which is known as the spin-Nernst effect. We show in $f$-wave magnets that spin current is generated pro…

[Phys. Rev. B 113, L241301] Published Mon Jun 15, 2026

The interplay between electronic modification and lattice distortion is critical for understanding emergent phenomena in correlated oxide heterostructures. For the conventional $\mathrm{LaAl}{\mathrm{O}}_3//\mathrm{SrTi}{\mathrm{O}}_3$ interface fabricated on the $\mathrm{SrTi}{\mathrm{O}}_3$ substrates, a 3% lattice mismatch dominates the interfacial lattice disto…

[Phys. Rev. B 113, 235308] Published Fri Jun 12, 2026

Two-dimensional hole gases (2DHGs) confined in Ge/SiGe quantum wells offer a promising platform for exploring low-dimensional spintronic phenomena and valence band dynamics, due to their strong spin-orbit interaction and long spin coherence times. Biaxial compressive strain arising from the lattice …

[Phys. Rev. B 113, 235307] Published Wed Jun 10, 2026

The coupling of atomic vibrations to electronic excitations—traditionally understood to be a source of energy loss in semiconductors—has recently been explored in photosynthetic light harvesting as a means to circumvent dissipation by harnessing quantum vibronic coherence. Motivated by recent photoc…

[Phys. Rev. B 113, 235306] Published Mon Jun 08, 2026

Electrons in two-dimensional electron gases in the presence of an out-of-plane magnetic field propagate along the edge with a high velocity of the order of the Fermi velocity. Under microwave and terahertz radiation, photon absorption by these electrons provides a pathway to realizing sensitive radi…

[Phys. Rev. B 113, 245301] Published Mon Jun 08, 2026

The photonic spin Hall effect (PSHE), a typical manifestation of spin-orbit interactions of light, is characterized by a transverse shift δ of photons with opposite spins. Precise measurement of this shift advances spin-dependent technologies, including precision metrology and optical sensing. Previ…

[Phys. Rev. B 113, 235305] Published Fri Jun 05, 2026

The existence of an elementary magnetic pole (charge) was predicted by Dirac in 1931 and here we propose and implement semiconductor nanostructures supporting such poles, which are InN/GaN heterostructure nanowires (NWs) with a few monolayer thick InN inclusions, grown using plasma-assisted molecula…

[Phys. Rev. B 113, 235303] Published Wed Jun 03, 2026

We investigate the optical properties of neutral excitons in CdTe/ZnTe quantum dots containing a single ${\mathrm{Ni}}^{2+}$ ion. We show that the photoluminescence spectra provide a direct spectroscopic signature of strain-induced mixing of the ${\mathrm{Ni}}^{2+}$ spin states. A misalignment between the principal axis of the loc…

[Phys. Rev. B 113, 235304] Published Wed Jun 03, 2026

In Si quantum dot systems, large magnetic field gradients are needed to implement spin rotations via electric dipole spin resonance (EDSR). By increasing the effective electron dipole, flopping mode qubits can provide faster gates with smaller field gradients. Moreover, operating in the strong-drivi…

[Phys. Rev. B 113, 235301] Published Tue Jun 02, 2026

We investigate a valleytronic method to enhance net phonon absorption by electrons (phonon valleytronics), enabling improved in situ thermoelectric cooling in heterostructured semiconductor devices. We show that electron energy filtering at a heterojunction barrier, combined with tailored valley off…

[Phys. Rev. B 113, 235302] Published Mon Jun 01, 2026

Thermal transport across GaN/SiC interfaces is governed by phonon transmission. However, how distinct interfacial bonding configurations (IBCs) modify heat transport remains poorly quantified. Moreover, previous molecular simulations have been hindered by the limited accuracy of empirical interatomi…

[Phys. Rev. B 113, 195308] Published Wed May 27, 2026

The magneto-optical properties of a ${\mathrm{Zn}}_{0.99}{\mathrm{Mn}}_{0.01}\mathrm{Se}/{\mathrm{Be}}_{0.93}{\mathrm{Mn}}_{0.07}\mathrm{Te}$ diluted magnetic semiconductor heterostructure with type-II band alignment are investigated at cryogenic temperatures down to 16 mK. The temperature of the Mn spin system, which at the lowest possible laser power reaches 270 mK, is ev…

[Phys. Rev. B 113, 195307] Published Tue May 26, 2026

Metasurfaces are becoming important tools for the control of thermal radiation. Understanding their functional possibilities on computational grounds requires evaluating the response of the biperiodic layered system for many degrees of freedom, including several radiation directions and polarization…

[Phys. Rev. B 113, 195306] Published Fri May 22, 2026

The peculiar 5/2 fractional quantum Hall state is a promising platform for fault-tolerant quantum computation, provided that the exact nature of its wave function can be understood. Here, using an exceptionally high-electron-mobility device patterned in the Corbino geometry, the authors report measurements of the pure bulk thermal conductance in the 5/2 and 7/3 fractional quantum Hall states. The data reveal a strong violation of the Wiedemann–Franz law, in agreement with a recent study published in $Nature$, and suggest that the underlying wave function at filling factor 5/2 is particle–hole symmetric.

[Phys. Rev. B 113, L201301] Published Thu May 21, 2026

Here, the authors identify a previously overlooked source of magnetic anisotropy in disordered dilute magnets. Using first-principles calculations and atomistic spin simulations for Ga${}_{1-x}$Mn${}_x$N, they show that nearest-neighbor magnetic ion pairs break local symmetry and generate a pair-induced uniaxial anisotropy. Incorporating this effect leads to a significantly improved agreement with experimental magnetization curves, demonstrating that conventional single-ion models are insufficient and that pairwise interactions are essential for quantitatively accurate descriptions of magnetism in disordered systems.

[Phys. Rev. B 113, 195305] Published Tue May 19, 2026

The quantized Hall response of Landau levels (LLs) provides a paradigmatic mechanism for the quantum Hall effect, where successive LLs contribute chiral edge channels. Pseudo Landau levels (pLLs), generated by strain in Dirac materials, faithfully mimic the LL spectrum but are widely believed to be …

[Phys. Rev. B 113, 195304] Published Thu May 14, 2026

We perform a differential resistance study in the hydrodynamic regime of an electron liquid in GaAs/AlGaAs quantum wells. At zero magnetic field $\left(B\right)$ a Lorentzian profile occurs in the nonlinear transport driven by a U-turn (ac) current loop, in $(\mathrm{ac}+\mathrm{dc})$ measurements a minimum deepens with the externa…

[Phys. Rev. B 113, 195302] Published Wed May 13, 2026

For dressed qubits, a strong drive is required to decouple the spin from noise, but increasing the drive strength leads to a breakdown of the rotating-wave approximation. Here, the authors demonstrate that simultaneous amplitude and phase modulation of a microwave drive generates an effective circularly polarized field in the rotating frame, canceling unwanted counter-rotating terms. Using a silicon spin qubit, they achieve stable and precise control with enhanced robustness to detuning and drive errors.

[Phys. Rev. B 113, 195303] Published Wed May 13, 2026

We compute and analyze the dependence of excitonic second- and third-harmonic generation (SHG/THG) as a function of the optical excitation intensity in the presence of static electric fields by solving the semiconductor Bloch equations. Our simulations are performed for excitation of the strongly bo…

[Phys. Rev. B 113, 205309] Published Mon May 11, 2026

Superconducting resonators coupled to solid-state qubits offer a scalable architecture for long-range entangling operations and fast, high-fidelity readout. Realizing this requires low photon-loss rates and qubits with tunable electric dipole moments that couple strongly to the resonator's electric …

[Phys. Rev. B 113, 205306] Published Fri May 08, 2026

We present an analytical theory of second harmonic generation (SHG) in hybrid structures combining a nonlinear two-dimensional (2D) crystal with a dielectric metasurface waveguide. The theory describes the excitation spectrum and enhancement of SHG at both leaky mode and quasibound state in the cont…

[Phys. Rev. B 113, 205307] Published Fri May 08, 2026

The dispersion of topological surface states in three-dimensional topological insulators (TIs) is commonly attributed to the atomic spin-orbit coupling (SOC) of the constituent elements. Whether the observable surface-state dispersion reflects this bare atomic value, or instead an effective SOC reno…

[Phys. Rev. B 113, 205308] Published Fri May 08, 2026

As electronic devices continue to advance, accurate thermal management at the nanoscale is becoming increasingly crucial in engineering design. While the phonon Boltzmann transport equation (BTE) is commonly used for this purpose, conventional boundary conditions, such as the acoustic mismatch model…

[Phys. Rev. B 113, 205304] Published Wed May 06, 2026

A general symmetry-controlled mechanism is proposed for realizing dual flat bands of bound state in the continuum (BIC) and its radiative counterpart in photonic crystal slabs. By breaking the vertical mirror symmetry of a slab, interpolarization coupling between TE-like and TM-like modes is activat…

[Phys. Rev. B 113, 205305] Published Wed May 06, 2026

Electromagnetic wave propagation in time-varying media offers unique possibilities for controlling wave dynamics beyond spatially structured systems. While both nonideal step transitions and the suppression of reflection in the adiabatic limit are well-established phenomena in the WKB framework, the…

[Phys. Rev. B 113, 195301] Published Mon May 04, 2026

The interlayer quasi-chemical-bonding (QCB) interactions of two-dimensional layered materials advance the research field of interlayer engineering and cause interlayer charge density redistributions (ICDRs). The ICDRs have been reported experimentally and theoretically, showing different redistribut…

[Phys. Rev. B 113, 205302] Published Mon May 04, 2026

Recent advances in the scaling of spin qubits have led to the development of sparse architectures where spin qubits are distributed across multiple quantum dots. This distributed approach allows for qubit manipulation through hopping and flopping modes and may enable spin shuttling protocols to enta…

[Phys. Rev. B 113, 205303] Published Mon May 04, 2026

Type-II hyperbolic lattices constitute a new class of hyperbolic structures that are projected onto the Poincaré ring and possess both an inner and an outer boundary. In this work we reveal the higher-order topological phases in type-II hyperbolic lattices, characterized by the generalized quadrupol…

[Phys. Rev. B 113, 205301] Published Fri May 01, 2026

High-order harmonic generation (HHG) in solids provides a compact route to attosecond light sources, but its efficiency and tunability remain key challenges. Here, we investigate HHG from $\mathrm{Cu}\left(111\right)\text{/}n\text{−}\mathrm{ML}$ NaCl heterostructures and identify a previously unreported interfacial mechanism that simultaneousl…

[Phys. Rev. B 113, 165307] Published Mon Apr 27, 2026

Nonlinearities in the classical Hall resistance of two-dimensional electron gases exposed to retroreflective obstacles at random positions are reported. The Hall slope develops a nonmonotonic component, which increases strongly in amplitude and shifts to larger magnetic fields as the obstacle densit…

[Phys. Rev. B 113, 165306] Published Tue Apr 21, 2026

We introduce a light-matter interface that integrates a nanoscale buried heterostructure emitter into a dielectric bowtie cavity, colocalizing the optical hotspot and the electronic wavefunction. This platform enables strong light-matter interaction through deep subwavelength confinement while remai…

[Phys. Rev. B 113, 155307] Published Mon Apr 20, 2026

The interaction between a particle's spin and momentum—known as spin-orbit (SO) coupling—is the cornerstone of modern spintronics. In Bose-Einstein condensates of ultracold atoms, SO coupling can be implemented and precisely controlled experimentally; photonic systems, on the other hand, possess an …

[Phys. Rev. B 113, 155306] Published Fri Apr 17, 2026

High-fluence silicon-28 (${}^{28}\mathrm{Si}$) ion implantation has been shown to produce isotopically enriched surface regions within natural silicon (Si) wafers through localized focused ion beam implantation. In this work, molecular dynamics simulations are performed to simulate ${}^{28}\mathrm{Si}$ ion implantations into a Si …

[Phys. Rev. B 113, 165305] Published Fri Apr 17, 2026

Understanding orientation dependent phonon transport is essential for optimizing heat dissipation in crystalline heterostructures for advanced electronic applications. However, the intrinsic and extrinsic mechanisms governing the degree of orientation dependent interfacial thermal conductance ($G$) re…

[Phys. Rev. B 113, 165304] Published Wed Apr 15, 2026

Accurate phonon transmission coefficients are essential for controlling heat transport and designing phononic metamaterials. Conventional models for computing transmission coefficient are based on plane-wave solution and spectrum weighting, limiting their ability to capture actual phonon transport d…

[Phys. Rev. B 113, 165302] Published Tue Apr 14, 2026

We present a finite-strain model that is capable of describing the large deformations in bent nanowire heterostructures. The model incorporates a nonlinear strain formulation derived from the first Piola-Kirchhoff stress tensor, coupled with an energy functional that effectively captures the lattice…

[Phys. Rev. B 113, 165303] Published Tue Apr 14, 2026

We experimentally investigate the influence of Coulomb interactions on current noise in a Fabry-Pérot cavity formed by two series-coupled quantum point contacts and a pair of side gates. By varying the side-gate voltage to tune the interaction strength, we observe pronounced deviations from the noni…

[Phys. Rev. B 113, 155305] Published Mon Apr 13, 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