323 papers
This paper theoretically demonstrates that Landau level transitions in monolayer WTe2 induce a giant, tunable photonic spin Hall effect driven by Hall-conductivity-induced Hall angles, enabling nanoscale light manipulation with displacements exceeding 400 times the incident wavelength.
This paper establishes practical stability bounds for the Generalized Kadanoff-Baym Ansatz (GKBA) in electron-phonon dynamics by identifying parameter regions where the method fails in a Holstein dimer model and demonstrating that coupling to electronic leads can mitigate these instabilities.
This paper proposes that leveraging negative capacitance in engineered structures can invert the natural repulsive Coulomb interaction between electrons into an attractive force, thereby enabling new regimes of Coulomb engineering that could stabilize unconventional correlated phases such as superconductivity.
This paper introduces an improved low-energy two-band model for rhombohedral pentalayer graphene to demonstrate that excitons possess electrically tunable, quantized Wannier function centers and inherit Berry curvature, establishing the material as a versatile platform for exploring excitonic topology and edge modes in moiré systems.
This paper establishes a gauge-invariant framework for defining unique electron and hole exciton Berry phases via a projected position operator, enabling the numerical calculation of exciton polarization and the characterization of topologically distinct exciton bands, including shift excitons, through crystalline inversion and symmetries.
This study reveals that thermal cycling induces irreversible degradation in the van der Waals bonding and electronic transport of hBN/graphene heterostructures on metallic islands due to thermal-expansion-driven delamination and interfacial residue redistribution, while demonstrating that hot pressing can restore contact and highlighting the critical role of interfacial stability in 2D device applications.
This paper predicts the existence of self-bound quantum droplets formed by a spin mixture of exciton-polaritons in atomically thin semiconductor microcavities, where tunable interactions near a biexciton Feshbach resonance balance mean-field attraction with quantum fluctuation-induced repulsion.
By leveraging electrostatic control of Landau-level crossings in high-quality bilayer graphene devices, this study demonstrates that enhanced Landau-level mixing near orbital crossings stabilizes electronic crystals over topological fractional quantum Hall liquids at constant filling factors, revealing distinct transition characteristics and evidence for a paired composite fermion state.
This paper proposes that heterosheared bilayer graphene hosts high-temperature superconductivity driven by 1D moiré flat bands, where valley polarization enables Cooper pair condensation by spatially separating electrons of opposite spins to minimize Coulomb repulsion.
Through numerical simulations of a finite-temperature two-skyrmion system, this study reveals asymmetric information flow violating detailed balance and identifies a box-size-dependent transfer entropy peak that characterizes state-change times, suggesting potential applications in natural computing.
This paper investigates a novel interedge backscattering mechanism in time-reversal symmetric quantum spin Hall Josephson junctions, where phase-independent Andreev bound states mediate coupling between opposite edges to open gaps and decouple a 4-periodic spectrum, leading to distinct signatures in Shapiro experiments and superconducting quantum interference patterns that can be tuned by magnetic flux.
This paper presents a finite-element method model capable of accurately simulating electrostatic patch forces in complex, realistic experimental geometries—including those with roughness, edges, and curvature—by utilizing Voronoi diagrams or Kelvin Probe Force Microscopy data to provide reliable estimates of parasitic forces relevant to Casimir force measurements and gravitational wave interferometers.
This paper theoretically demonstrates that locally injected electric currents in chiral metals induce bulk spin polarization in the linear response and interface antiparallel spin polarization in the quadratic response, with the latter's sign being determined by dipole-like charge distributions rather than bulk spin currents, thereby reproducing experimental correlations between structural chirality and spin polarization direction.
This study demonstrates the successful formation of highly ordered, crystalline Ag and Au nanoparticles within single-crystalline -GaO via ion implantation and 550°C annealing, characterized by specific crystallographic alignment with the host matrix and confirmed by localised surface plasmon resonance.
This paper presents a microscopic theory demonstrating that bending-induced inhomogeneous spin textures on curved magnetic surfaces can generate a Dzyaloshinskii-Moriya-type interaction between magnetic impurities mediated by itinerant electrons, even in the absence of spin-orbit coupling.
This paper establishes a microscopic framework for non-Markovian phonon dynamics driven by high-intensity THz pulses, using molecular dynamics simulations to derive noise and dissipation kernels that quantify heat production and reveal the crossover between Markovian and non-Markovian regimes on picosecond timescales.
This study utilizes a custom-built cryogenic magneto-THz scattering-type scanning near-field optical microscopy platform to visualize the nanoscale evolution of colossal magnetoresistance in , revealing that magnetic-field-induced spin switching initiates as 1–2 nm isolated sites that coalesce into ~15 nm conducting regions during the transition from an antiferromagnetic insulator to a ferromagnetic metal.
This paper presents a constructive, closed-form method to generate Floquet-Bloch states for the Hill equation directly from arbitrary linearly independent solutions using the monodromy or transfer matrix, thereby providing a versatile framework for analyzing periodic systems without requiring canonically normalized solutions.
This paper introduces a covariant rank-4 tensor gauge field theory that naturally generates fractonic string excitations and a novel generalized dipole conservation law through symmetry principles, while also revealing a deep connection to linearized area-metric gravity.
This paper theoretically demonstrates that magneto-current-phase relation measurements in proximitized planar Josephson junctions serve as a versatile spectroscopic tool to reconstruct ground-state phases, quantify Rashba spin-orbit coupling, diagnose topological gap closings, and characterize the Josephson diode effect.