Several models of the strange-metal state of the cuprate superconductors postulate the existence of strong inelastic forward scattering of the electrons, but direct evidence of such scattering is missing. Here we show that angle-resolved photoemission spectroscopy (ARPES) provides a unique tool that…

[Phys. Rev. B 114, 134512] Published Wed Sep 16, 2026

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

We investigate chiral superconductivity emerging from parent electronic states with non-uniform Berry curvature, motivated by recent experiments in rhombohedral graphene multilayers. Using the continuum ${\lambda }_N$-model—a tunable platform with independently controllable Berry curvature profiles—we solve the…

[Phys. Rev. B 114, 154504] Published Wed Sep 09, 2026

We theoretically investigate the anomalous and diode Josephson effects in planar two-dimensional Josephson junctions with arbitrarily oriented exchange fields in two ferromagnets within the barrier, and spin-orbit coupling at the superconductor/ferromagnet interfaces, where the superconducting elect…

[Phys. Rev. B 114, 144503] Published Tue Sep 08, 2026

The standard mean-field treatment of low-temperature superconductors leads to a square-root divergent density of states at the gap value. This feature can lead to unphysical logarithmic divergences in various quantities, such as currents and qubit transition rates. We revisit their possible regulari…

[Phys. Rev. B 114, 144504] Published Tue Sep 08, 2026

We present a theoretical study of nonreciprocal charge transport in two-dimensional noncentrosymmetric superconductors, taking the transition-metal dichalcogenide ${\mathrm{MoS}}_2$ as a representative example. In the normal state, the magnetochiral anisotropy vanishes within the minimal band model of ${\mathrm{MoS}}_2$, appea…

[Phys. Rev. B 114, 154503] Published Tue Sep 08, 2026

Experimental observations on ${\mathrm{KTaO}}_3$ superconductivity report widely different critical temperatures with a clear hierarchy among different crystallographic orientations. Accounting for spatial confinement, we connect the inhomogeneous superconducting order parameter with the spatial extent of the two…

[Phys. Rev. B 114, L140501] Published Tue Sep 08, 2026

Under compression, elemental scandium (Sc) exhibits a remarkable monotonic increase in superconducting critical temperature ($T_c$), at a pressure of 240 GPa, reaching up to 37.6 K—the highest $T_c$ reported for all elemental solids to date. However, its electronic origin underlying this enhancement has r…

[Phys. Rev. B 114, L140502] Published Tue Sep 08, 2026

Four- or higher-order fermionic condensates can form in non-BCS multicomponent superconductors. Here, the authors present spectroscopic evidence for pairing correlations that appear well above the superconducting critical temperature in the highly overdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ system with broken time-reversal symmetry (BTRS). The NMR and $\mu$SR findings show that multicomponent superconductivity appears homogeneously throughout the entire sample volume and that the BTRS state is unrelated to conventional spin magnetism.

[Phys. Rev. B 114, 134504] Published Fri Sep 04, 2026

We analyze the spectrum of collective modes in a superconductor, in which pairing is mediated by long-range nematic fluctuations. Previous experimental and theoretical studies have found that a superconducting gap in such a system is highly anisotropic and at any finite $T<T_c$ vanishes on four arcs…

[Phys. Rev. B 114, 134505] Published Fri Sep 04, 2026

FeSe stands out among iron-based superconductors due to its extended nematic phase without the onset of long-range magnetic order. While strain-dependent electrical resistivity has been extensively explored to probe nematicity, its influence on magnetotransport properties remains less understood. In…

[Phys. Rev. B 114, 144502] Published Fri Sep 04, 2026

We investigate the impact of quantum and thermal phase fluctuations on the suppression of superconducting order in two-dimensional systems. Within the two-dimensional quantum XY model in the phase representation, where on-site interaction terms govern quantum phase fluctuations, we perform extensive…

[Phys. Rev. B 114, 134503] Published Thu Sep 03, 2026

We show that a planar Josephson junction having $d$-wave superconducting regions, with a skyrmion crystal placed underneath, produces a robust gate-tunable superconducting diode effect. The spatially varying exchange field of the skyrmion crystal breaks both inversion and time-reversal symmetries, lea…

[Phys. Rev. B 114, 154502] Published Wed Sep 02, 2026

Record-high critical temperatures ($T_{\mathrm{c}}$) of elemental superconductors have been rapidly updated under extreme pressures, yet typically only above the megabar regime. Preserving such high $T_{\mathrm{c}}$ at lower pressures remains a fundamental challenge. Here, we demonstrate that strategic alloying of Ti with cont…

[Phys. Rev. B 114, 134501] Published Tue Sep 01, 2026

We theoretically investigate the charge transport in a normal metal/normal metal/superconductor junction based on semi-Dirac materials. It is shown that off-resonant circularly polarized light applied to the central normal region induces an additional phase for the backreflected states. This light-i…

[Phys. Rev. B 114, 134502] Published Tue Sep 01, 2026

We numerically investigate the nonlinear dynamics of a two-dimensional exciton-polariton quantum fluid coherently driven by two counterpropagating laser beams. Using an exciton-photon coupled driven-dissipative Gross-Pitaevskii framework, we identify four distinct regimes—that we label as linear, so…

[Phys. Rev. B 114, 144501] Published Tue Sep 01, 2026

Why does LaSc${}_2$H${}_{24}$ exhibit superior superconductivity compared with LaH${}_{10}$? Here, the authors indicate that scandium not only distorts the hydrogen cage structure but also creates MgB${}_2$-like Sc-H states at the Fermi level. This synergy enhances electron-phonon coupling, unifies strongly coupled H-H states with widely distributed Sc-H states on the Fermi surface, and leads to isotropic single-gap superconductivity with a higher superconductivity.

[Phys. Rev. B 114, 154501] Published Tue Sep 01, 2026

Suggestive but indirect evidence for pair-density-wave correlations has been reported in several high-$T_{\mathrm{c}}$ cuprates, yet a bulk-sensitive scattering signature of the expected subharmonic charge response has remained elusive. Here, the authors use resonant soft x-ray scattering to identify a reproducible subharmonic charge density wave response near half the primary charge-ordering wave vector in two La-based cuprates. The response emerges in the stripe-ordered, layer-decoupled superconducting regime, where charge, spin, and superconducting correlations are intertwined.

[Phys. Rev. B 114, 074514] Published Mon Aug 31, 2026

We theoretically investigate the motion of a domain wall and a vortex in type-II superconductors driven by inhomogeneities of temperature or spin accumulation. The model consists of the time-dependent Ginzburg–Landau equation and the thermal or spin-diffusion equation, whose transport coefficients, …

[Phys. Rev. B 114, 084513] Published Mon Aug 31, 2026

Unconventional superconductivity under strong Zeeman fields—particularly beyond the Pauli paramagnetic limit—remains a central challenge in condensed matter physics. The exotic Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state, in particular, remains in need of definitive study within fundamental electr…

[Phys. Rev. B 114, 094518] Published Fri Aug 28, 2026

Superconductivity begins when electrons bind into pairs. Because electrons are fermions, exchanging the two partners in a pair must flip the sign of its wavefunction — and that minus sign can be paid for in four different currencies: the pair’s spin, its spatial shape, its orbital character, and, less obviously, the relative time between the two electrons. Sharing one minus sign among four ± choices leaves exactly eight allowed kinds of Cooper pair. Balatsky and Banerjee show here that this eightfold rule is one face of a larger structure. A pair also has a center of mass — a place and a moment — and a superconductor can order in those as well. Taking internal shape (ρ), internal timing (τ), spatial modulation (R), and temporal modulation (T) as four independent axes builds the Berezinskii–Abrahams hypercube: a sixteen-corner map of superconducting order. BCS sits at the origin; each single axis recovers a familiar family — $p$- and $d$-wave gaps, odd-frequency pairing, FFLO and pair-density waves, driven superconductors. The corners in-between are hybrids. A few have been touched; most are empty, and the far corner, with all four switched-on at once, has never been visited. The hypercube is at once a classification and a search map.

[Phys. Rev. B 114, 074511] Published Thu Aug 27, 2026

Quasicrystals (QCs) host long-range order without translational symmetry, a regime in which the very foundations of BCS theory are not straightforwardly applicable, yet experiments on QCs and their approximant crystals (ACs) point to conventional, $s$-wave, electron–phonon-coupled superconductivity. H…

[Phys. Rev. B 114, 074512] Published Thu Aug 27, 2026

We investigate high-energy spin excitations in hole-doped ${\mathrm{La}}_{2-x}{\mathrm{Ca}}_x{\mathrm{CuO}}_{4-\delta }$ (LCCO) films across a broad Ca doping range ($x=0.05–0.50$) using resonant inelastic x-ray scattering (RIXS). Polarization analysis and incident-photon energy detuning measurements confirm the persistence of collective paramagnon…

[Phys. Rev. B 114, 074513] Published Thu Aug 27, 2026

The appearance of superconductivity in ${\mathrm{FePSe}}_3$ and its absence in ${\mathrm{MnPSe}}_3$ has been linked to pressure-driven magnetic quenching from a high-spin to low-spin state, which fills the $T_{2\mathrm{g}}$ orbital with Fe $3d^6$ electrons. However, the exact mechanisms responsible for emergent superconductivity remain ambiguo…

[Phys. Rev. B 114, 084512] Published Thu Aug 27, 2026

Resolving where a density-wave gap opens in momentum space is pivotal for identifying the microscopic origin of instabilities in layered nickelates. Using polarization- and symmetry-resolved electronic Raman scattering, we map the momentum dependence of the spin-density-wave (SDW) gap in trilayer ${\mathrm{La}}_{\mathrm{\dots }}$

[Phys. Rev. B 114, L080510] Published Thu Aug 27, 2026

Ultrafast birefringence oscillations observed in superfluid helium provide evidence for anisotropic quantum squeezing of quasiparticle pairs. The measured response is a superposition of contributions from all vibrational modes, with dominant contributions from rotons, maxons, and Pitaevskii's platea…

[Phys. Rev. B 114, 074510] Published Wed Aug 26, 2026

We present measurements demonstrating that copper-oxide high-temperature superconductors can exhibit broken time-reversal symmetry in the absence of external magnetic fields. Using ${\mathrm{Tl}}_2{\mathrm{Ba}}_2{\mathrm{CaCu}}_2{\mathrm{O}}_8$ microbridges, we observe a pronounced superconducting diode effect at 100 K under strictly zero-field con…

[Phys. Rev. B 114, 094517] Published Wed Aug 26, 2026

The interplay between unconventional superconductivity and altermagnetic order has attracted much attention. In particular, whether spin-triplet superconductivity can be achieved by suppressing altermagnetism remains an open issue. We investigate this issue using a minimal single-orbital Hubbard mod…

[Phys. Rev. B 114, L080509] Published Wed Aug 26, 2026

The study of mechanisms for enhancing superconductivity has been a central topic in condensed matter physics because of the combination of fundamental and technological interests. One promising route is to exploit nonequilibrium effects in the steady state. Efforts in this direction have so far focu…

[Phys. Rev. B 114, 074507] Published Mon Aug 24, 2026

Collective modes in superconductors, such as the Higgs mode, offer deep insights into the nature of condensates. Third-harmonic generation (THG) is a primary tool for probing the Higgs mode, but its signal competes with that of quasiparticle excitations depending on impurity scattering rates. In par…

[Phys. Rev. B 114, 074508] Published Mon Aug 24, 2026

We investigate the effect of weak interband impurity scattering on the intertype (IT) domain between type-I and type-II superconductivity in diffusive two-band superconductors. Our results show that the significant broadening of the IT domain with increasing band diffusivity ratio, previously establ…

[Phys. Rev. B 114, 074509] Published Mon Aug 24, 2026

We establish an exact Bogoliubov sum rule for any Hermitian single-particle operator $O$: at each momentum, its particle-hole and particle-particle matrix-element weights sum to the single-particle trace ${\mathrm{Tr}}_s\left(O^2\right)$. The result follows solely from Hilbert–Schmidt-norm invariance under a canonical Bogoliub…

[Phys. Rev. B 114, 084510] Published Mon Aug 24, 2026

Metal intercalation and stacking engineering provide effective routes to enhance superconductivity in two-dimensional borophene-based materials. Here we focus on the $\mathit{AA}$-stacked Sr-intercalated coloring-triangle-lattice (CTL) bilayer borophene ($AA\text{−}{\mathrm{SrB}}_{18}$), identified from a systematic first-principles…

[Phys. Rev. B 114, 084511] Published Mon Aug 24, 2026

As a classic high-pressure superconductor, elemental lanthanum (La) offers a vital platform for understanding tunable superconductivity. Using first-principles calculations, this study systematically investigates the strain-engineered superconducting properties and the underlying multiscale mechanis…

[Phys. Rev. B 114, 094513] Published Mon Aug 24, 2026

We investigate the structural, electronic, and superconducting properties of a hexagonal ${\mathrm{BP}}_3$ monolayer using first-principles calculations combined with anisotropic Migdal-Eliashberg theory. The optimized structure exhibits a stable, slightly buckled configuration, as confirmed by phonon dispersion …

[Phys. Rev. B 114, 094514] Published Mon Aug 24, 2026

Superconductivity with nontrivial band topology provides a platform for exploring topological superconductivity and its quantum applications. A detailed microscopic understanding of the superconducting ground state in such materials is crucial. Here, we report the results of a muon spin rotation/rel…

[Phys. Rev. B 114, 094515] Published Mon Aug 24, 2026

We study quantum fluctuations in a quartet superfluid (QSF) of two-dimensional (2D) fermion mixtures with mass imbalance. Here QSF is a high-order superfluid that corresponds to the condensation of $(1+3)$ clusters, each consisting of a light fermion and three heavy ones. By incorporating the Gaussian…

[Phys. Rev. B 114, 094516] Published Mon Aug 24, 2026

Internal vibrations of the superconducting condensate, such as clapping modes and Bardasis-Schrieffer modes, are often invisible to linear optical spectroscopy due to crystallographic selection rules. Here, the authors show how, in threefold-symmetric valley-polarized superconductors, trigonal warping allows these modes to absorb light at linear order. Consequently, the modes appear in both components of the optical conductivity tensor. The authors then discuss how rhombohedral graphene multilayers provide natural candidate materials in which to probe superconducting collective excitations by microwave spectroscopy.

[Phys. Rev. B 114, L080507] Published Mon Aug 24, 2026

We report muon-spin rotation measurements of the pressure dependence of the oxygen-isotope $\left({}^{16}\mathrm{O}\text{/}{}^{18}\mathrm{O}\right)$ effect on the spin-density wave (SDW) transition in the trilayer Ruddlesden-Popper nickelate ${\mathrm{Pr}}_4{\mathrm{Ni}}_3{\mathrm{O}}_{10}$. At ambient pressure, the SDW transition shows a finite isotope shift, with ${}^{16}T_{\mathrm{SDW}}=158.04\left(5\right)\mathrm{K}$ an…

[Phys. Rev. B 114, L080508] Published Mon Aug 24, 2026

We present the global topological phase diagram of a two-dimensional electron gas placed in a quantizing magnetic field and proximitized by a superconducting vortex lattice. Our theory allows for arbitrary ratios of the pairing amplitude, magnetic field, and chemical potential. By analyzing the Bogo…

[Phys. Rev. B 114, 074506] Published Thu Aug 20, 2026

Unconventional superconductivity (SC) featuring multifermion orderings has attracted significant attention. However, previous studies have primarily focused on two-dimensional (2D) systems or 3D systems with effective 2D symmetries. Here, we explore the vestigial phases arising from thermal fluctuat…

[Phys. Rev. B 114, 084509] Published Wed Aug 19, 2026

Dirty superconducting films with magnetic impurities can exhibit nontrivial behavior in a magnetic field that polarizes the impurity spins. As predicted by Kharitonov and Feigelman (KF) [JETP Lett. 82, 421 (2005)], this polarization reduces the exchange scattering rate. Consequently, a parallel magn…

[Phys. Rev. B 114, 074505] Published Mon Aug 17, 2026

In this work, we show that the edge dynamics of the composite boson condensate in the weakly nonlinear regime is governed by the Korteweg–de Vries (KdV) equation. Our starting point is the Chern-Simons-Ginzburg-Landau (CSGL) theory in the lower half-plane, where the effective edge dynamics are encod…

[Phys. Rev. B 114, 084505] Published Mon Aug 17, 2026

We investigate the topological properties and phase diagrams of a one-dimensional Kitaev chain with spin-orbit coupling, subject to an external magnetic field, and hosting coexisting singlet $s$-wave and triplet $p$-wave pairings. To drive the system out of equilibrium, we introduce a phase in the hoppi…

[Phys. Rev. B 114, 084506] Published Mon Aug 17, 2026

Superconductivity is intrinsically linked to the crystal structure of materials, and structural heterogeneity under high pressure often yields broadened or mixed superconducting transitions. Here instead we report multiple superconducting phases in compressed ${\mathrm{PbSnSe}}_2$: two well-separated superconduct…

[Phys. Rev. B 114, 084507] Published Mon Aug 17, 2026

We investigate nonequilibrium dynamics of a triad of fermionic superfluids connected via Josephson junctions, following sudden switch-on of two-body loss in one of the three superfluids. By formulating the dissipative BCS theory for the Lindblad equation, we find that the superfluid order parameter …

[Phys. Rev. B 114, 084508] Published Mon Aug 17, 2026

Experimental evidence of spontaneous time-reversal (TR) symmetry breaking have been reported for the superconducting ground state in the transition metal dichalcogenide (TMD) superconductor $4{\mathrm{H}}_b\text{−}{\mathrm{TaS}}_2$ or chiral molecule intercalated ${\mathrm{TaS}}_2$ hybrid superlattices, and is regarded as evidence of the emergen…

[Phys. Rev. B 114, 094511] Published Mon Aug 17, 2026

In Type II superconductors, the vortex lattice can exhibit inverse melting, transitioning from a liquid to a crystalline solid as temperature increases. While recently observed via scanning tunneling microscopy in a 20 nm thick amorphous ${\mathrm{Re}}_6\mathrm{Zr}$ thin film, this work investigates the corresponding dc t…

[Phys. Rev. B 114, 094512] Published Mon Aug 17, 2026

We construct an emergent geometric description of triplet pairing fluctuations in a two-dimensional metal at a ferromagnetic quantum critical point. The analysis also applies to the behavior of the half-filled lowest Landau level, as well as to other two-dimensional systems featuring emergent gauge …

[Phys. Rev. B 114, 094510] Published Fri Aug 14, 2026

Controlling magnetic coupling at superconductor-magnet interfaces is a fundamental challenge. Using numerical renormalization group calculations on a strongly correlated molecular dimer coupled to two superconducting electrodes, we report a two-stage quantum phase transition driven solely by the sup…

[Phys. Rev. B 114, L080506] Published Fri Aug 14, 2026

Motivated by the orientation-dependent spin splitting and vanishing net magnetization of altermagnets, we study $d$-wave altermagnetic Josephson junctions (JJs) with a focus on the emergence and controllability of non-Hermitian degeneracies [or exceptional points (EPs)] where both eigenvalues and eige…

[Phys. Rev. B 114, 074503] Published Thu Aug 13, 2026

In this manuscript we consider a superconducting film in the vicinity of the critical temperature and presence of the proximity effect. We analytically solve the corresponding linearized Usadel equation and the self-consistency equation, defining the critical temperature. This is a system of coupled…

[Phys. Rev. B 114, 074504] Published Thu Aug 13, 2026

Here, the authors use zero- and transverse-field muon-spin rotation/relaxation to probe multiband, multigap superconductivity in Li${}_{0.95}$FeAs, a representative 111-family Fe-based superconductor. They find no detectable time-reversal-symmetry breaking and a bulk superfluid response consistent with nodeless superconductivity. By comparing the measured superfluid density with band weights derived from published photoemission studies, they show that sheets carrying intermediate and small gaps dominate, while the largest-gap sheet contributes only weakly, reconciling gap scales reported by bulk- and surface-sensitive probes.

[Phys. Rev. B 114, 094509] Published Thu Aug 13, 2026

We discuss a possibility of superconductivity in the $p$-wave magnets. These are recently discovered materials that have zero net magnetization by symmetry and finite nonrelativistic spin splitting of electron bands, like in altermagnets. Similarly, the spin polarizations are collinear in the momentum…

[Phys. Rev. B 114, L080505] Published Wed Aug 12, 2026

We report on the synthesis and characterization of an yttrium-containing high-entropy alloy (HEA) superconductor obtained from a nominal YNbTiZrHf composition. Structural analysis reveals a body-centered-cubic matrix with minor yttrium-rich hexagonal precipitates. Comprehensive measurements of elect…

[Phys. Rev. B 114, 094507] Published Tue Aug 11, 2026

${\mathrm{Re}}_{0.6}{\left(\mathrm{HfZrNbTi}\right)}_{0.4}$ is a hexagonal high-entropy alloy superconductor that serves as a model system for exploring the interplay of disorder, crystal structure, and superconductivity. We investigate its superconducting properties under pressures up to 56.6 GPa using electrical transport measurements. T…

[Phys. Rev. B 114, 094508] Published Tue Aug 11, 2026

The IV-VI chalcogenides exhibit exotic electronic properties arising from their diverse crystal structures, including both two-dimensional (2D) and three-dimensional (3D) lattices, attracting broad interest for device application and fundamental research. Here we investigate the lattice-mismatched t…

[Phys. Rev. B 114, 074502] Published Mon Aug 10, 2026

The kagome metal ${\mathrm{CsV}}_3{\mathrm{Sb}}_5$ hosts an anomalous interplay between charge density wave (CDW) order and superconductivity—one where tuning its band filling by adding holes rapidly suppresses long-range CDW order and drives the formation of two unusual superconducting “domes.” Here, we determine the detail…

[Phys. Rev. B 114, 094504] Published Mon Aug 10, 2026

The metal-superconductor point contact (PC) is ballistic, if the coherence length ${\xi }_0$ in the superconductor, the electron mean free path $l_0$ in the metal, and the electron mean free path $l$ in the superconductor are much larger than the PC radius $a$. The differential conductance $G\left(V\right)$ of the ballistic PC…

[Phys. Rev. B 114, 094505] Published Mon Aug 10, 2026

We develop a first-principles framework for finite-temperature structural optimization that incorporates vibrational contributions to the free energy through anharmonic phonon theory. We extend and further improve the efficiency of the recent approach, enabling its application to systems in which th…

[Phys. Rev. B 114, L080504] Published Mon Aug 10, 2026

The intrinsic superconducting diode effect (SDE) is distinguished from the Josephson diode effect by its manifestation of nonreciprocal critical current phenomena within a monolithic superconductor, typically linked to finite-momentum Cooper pairing. The long-standing assumption that SDE requires co…

[Phys. Rev. B 114, 084504] Published Fri Aug 07, 2026

We study theoretically a process of cooling electrons using a superconducting tunnel junction with a $\pi$ phase difference and a usual insulator or a ferroelectric in between, and an array of such junctions with ferroelectric layers in between. These setups have a complex structure of entropy due to no…

[Phys. Rev. B 114, L080503] Published Fri Aug 07, 2026

We theoretically study the Josephson effect in ultracold Fermi gases, where the two sides of the Josephson junction are independently tuned to different regions of the Bardeen-Cooper-Schrieffer (BCS)-Bose-Einstein condensation (BEC) crossover. Using the nonequilibrium Green's function approach combi…

[Phys. Rev. B 114, 094503] Published Thu Aug 06, 2026

We show that a three-dimensional superconductor with a non-Abelian SU(2) order parameter can support an extended resistive regime—a Bose metal, in which transport is carried by bosonic electron-Majorana bound states—separating a uniform superconductor from a pair-density-wave (PDW) phase. The settin…

[Phys. Rev. B 114, 084502] Published Wed Aug 05, 2026

We consider states of BCS form in the two-dimensional (2D) Hubbard model which, starting from some arbitrary point in state space in the neighborhood of a Hartree-Fock ground state, are relaxed within that BCS ansatz to local minima of the energy. As in the Hartree-Fock approximation, there are a va…

[Phys. Rev. B 114, 084503] Published Wed Aug 05, 2026

Ising superconductors are two-dimensional materials that can host an unconventional superconducting state stabilized by strong spin-valley locking. Here, the authors theoretically propose the use of magnetic impurities as local probes of the superconducting state by studying Yu-Shiba-Rusinov bound states. They identify experimentally accessible signatures, including the bound-state spectrum and the supercurrent between the sample and a superconducting STM tip.

[Phys. Rev. B 114, 094502] Published Wed Aug 05, 2026

We study the topology of the order parameter in the intermediate phase between the superconducting and time-reversal symmetry-breaking transitions of a $p_x+i{p}_y$ superconductor under strain. The application of in-plane strain reduces the underlying crystal symmetry and lifts the degeneracy of the criti…

[Phys. Rev. B 114, L080501] Published Wed Aug 05, 2026

Nondemolition protocols use ancilla qubits to identify the fragile quantum state of a qubit without destroying its encoded information, thus playing a crucial role in nondestructive quantum measurements particularly relevant for quantum error correction. However, the multitude of ancilla preparation…

[Phys. Rev. B 114, L080502] Published Wed Aug 05, 2026

The recent discovery of a superconducting transition temperature $T_{\mathrm{c}}$ of 96 K in the Sm-doped Ruddlesden-Popper bilayer nickelate $\mathrm{L}{\mathrm{a}}_{3-x}\mathrm{S}{\mathrm{m}}_x\mathrm{N}{\mathrm{i}}_2{\mathrm{O}}_{7-d}$ under high pressure has attracted considerable attention [F. Li et al., Nature (London) 649, 871 (2026)]. However, the underlying mechanism of the effects …

[Phys. Rev. B 114, 074501] Published Mon Aug 03, 2026

We propose a model describing the formation of both conventional and dual Shapiro steps in small Josephson junctions. According to our model, dual Shapiro steps occur at relatively low frequency of the microwave signal and low microwave power, whereas conventional steps occur in the opposite limit o…

[Phys. Rev. B 114, 084501] Published Mon Aug 03, 2026

Here, the authors extend quasiparticle GW theory to the superconducting state, combining Eliashberg electron-phonon pairing with dynamical Coulomb screening from plasmons. The resulting superconducting quasiparticle GW (s-qpGW) framework avoids the spurious plasmon-driven superconductivity of fully self-consistent GW, reproduces standard Eliashberg results for bulk Nb, and correctly predicts the absence of superconductivity in doped monolayer graphene, while revealing how acoustic plasmons can reduce Coulomb pair breaking in two-dimensional systems.

[Phys. Rev. B 114, 094501] Published Mon Aug 03, 2026

Nonreciprocal dissipationless transport has long been sought for applications in superconducting technologies. Recently, it has been implemented by the so-called superconducting diode effect. Such an effect arises from an imbalance in critical supercurrents flowing in opposite directions. In this wo…

[Phys. Rev. B 114, 034513] Published Thu Jul 30, 2026

We present a theory of the Josephson current in superconductor-normal metal-superconductor (SNS) junctions in the presence of generic spin-dependent fields, such as spin-orbit coupling (SOC), Zeeman fields, and altermagnetism. We consider systems with arbitrary disorder strength, going beyond the us…

[Phys. Rev. B 114, 014511] Published Wed Jul 29, 2026

We report a thermally driven structural crossover of vortex matter in a two-dimensional superconducting Penrose quasicrystal. At low temperatures, vortices are pinned by the quasiperiodic lattice, forming an aperiodic pattern. With increasing temperature, vortex-vortex interactions dominate, leading…

[Phys. Rev. B 114, 024516] Published Wed Jul 29, 2026

We use scanning superconducting quantum interference device (SQUID) microscopy to image individual vortices in superconducting strips fabricated from NbTiN thin films. By repeatedly field cooling strips of different widths in applied magnetic fields, we extract the threshold field at which the first…

[Phys. Rev. B 114, 034510] Published Wed Jul 29, 2026

As an unconventional superconducting system capable of reaching 60 K under ambient pressure, the ${\mathrm{La}}_3{\mathrm{Ni}}_2{\mathrm{O}}_7$ thin-film superconductor has recently become a focal point in the field of superconductivity, calling for further theoretical exploration of its possible pairing mechanisms. In this work, we emp…

[Phys. Rev. B 114, 034511] Published Wed Jul 29, 2026

Kitaev chains realized in quantum dots coupled via superconducting segments provide a controllable platform for engineering Majorana zero modes (MZMs). In these systems, subgap states in the hybrid region mediate the effective coupling between quantum dots and determine the emergence of sweet spots …

[Phys. Rev. B 114, 034512] Published Wed Jul 29, 2026

Near a quantum critical point in a metal, strong fermion-fermion interactions mediated by soft collective bosons give rise to two competing phenomena: non-Fermi liquid behavior and superconductivity that deviates from conventional BCS and Migdal-Eliashberg theories. We consider the problem of obtain…

[Phys. Rev. B 114, 024512] Published Mon Jul 27, 2026

We study a dirty two-dimensional superconductor with Rashba spin–orbit coupling and in-plane Zeeman fields described by the nonlinear sigma model that includes the Cooper and long-range Coulomb interactions. The renormalized Ginzburg–Landau theory, which includes the weak localization effects at the…

[Phys. Rev. B 114, 024513] Published Mon Jul 27, 2026

Unlocking superconductivity in the intrinsically nonsuperconducting noble metals Au, Ag, and Cu represents a fundamental challenge in low-dimensional quantum materials. While quantum confinement in the atomically thin limit is known to trigger emergent superconductivity, strategies to amplify this m…

[Phys. Rev. B 114, 024514] Published Mon Jul 27, 2026

High-pressure superconducting electrides have attracted extensive attention because of the coexistence of accumulated interstitial electride states (IAEs) and the superconducting state, providing a novel platform for exploring high-temperature superconductors. Nevertheless, the driving force behind …

[Phys. Rev. B 114, 024515] Published Mon Jul 27, 2026

We report reproducible magnetization anomalies appearing below room temperature in copper-doped apatite materials belonging to the LK-99 family synthesized via hydrothermal methods. These anomalies are observed consistently across samples prepared under comparable conditions. Although the extracted …

[Phys. Rev. B 114, 014510] Published Thu Jul 23, 2026

We study composite topological excitations in ferromagnetic superconductors consisting of bound states of magnetic spin textures (skyrmions) and superconducting vortices. Using a Ginzburg-Landau framework with Zeeman coupling between the magnetization and the superconducting magnetic field, we demon…

[Phys. Rev. B 114, 014509] Published Wed Jul 22, 2026

The superfluid-insulator transition in systems of lattice bosons is usually analyzed in the framework of the Bose-Hubbard model, and has been extensively studied by theory and simulations. Less attention has been paid to the remnants of the transition in truncated lattices, with or without periodic …

[Phys. Rev. B 114, 034509] Published Wed Jul 22, 2026

Identifying the pairing symmetry in unconventional superconductors is essential for reliably characterizing their superconducting states and for enabling their integration into realistic quantum devices. Here, we introduce a machine-learning-guided strategy to determine pairing symmetry from quasipa…

[Phys. Rev. B 114, 024511] Published Tue Jul 21, 2026