365 papers
This study experimentally validates the robustness of chiral edge states in Chern insulator MnBi2Te4 devices by demonstrating that quantized Hall transport persists even when the edge channel is severed by engineered geometric defects created via AFM nanomachining.
This paper presents a trainable neuromorphic spintronic hardware architecture that utilizes analog finite-difference methods to generate on-device gradients, enabling efficient and accurate training of spintronic neural networks despite significant device variability.
This study reveals that the dynamics of charge-density-wave puddles in 2-NbSe give rise to a novel Fano-coupled phonon-CDW hybrid mode, characterized by a low-frequency overdamped oscillation that emerges below 17 K and highlights the critical role of lattice pinning and electronic correlations in stabilizing incommensurate CDW order.
This paper proposes the spin-rotation quantum geometric tensor as a novel probe to experimentally access the intrinsic geometry of persistent spin textures by demonstrating that it generates a unique, direction-independent nonlinear gyrotropic current, thereby overcoming the limitations of conventional geometric measurements in these systems.
This paper presents the first study of ballistic Andreev transport in a two-dimensional HgTe quantum well cavity, demonstrating that two distinct finite-bias conductance peaks arise from different classes of interfering trajectories—one dominated by normal reflection and the other by retro-reflected Andreev processes—which exhibit contrasting responses to magnetic fields due to Aharonov-Bohm and Doppler shift effects.
This paper presents an extended theoretical framework for atomic-scale Stark-shift spectroscopy using light-assisted scanning tunneling microscopy to map subnanometric charge redistribution and polarizability changes in organic molecules under realistic, inhomogeneous electric fields.
This paper presents a universal framework for constructing minimal non-Hermitian Hamiltonians that realize arbitrary knotted and linked exceptional loops in 3D momentum space, establishing knot theory as a fundamental classification scheme for non-Hermitian topological phases and demonstrating their stability, tunability, and experimental feasibility in electro-acoustic systems.
This paper reviews recent advancements in artificial flat band systems by focusing on the classification of flat band generators via compact localized states, the effects of disorder and many-body interactions, and the growing experimental realizations across diverse physical platforms.
This study employs first-principles many-body perturbation theory to reveal that monolayer SnS2 hosts saddle-point excitons with polarization-selective coupling at the M point, which lifts C3 rotational symmetry to generate three linearly independent excitonic states with potential applications in valleytronics.
This paper presents a theoretical framework based on the Bloch diffusion equation to model spin density and Hanle lineshapes in heterogeneous lateral spin devices, specifically analyzing how in-plane anisotropic spin relaxation induced by proximity effects in graphene influences spin precession signals.
This paper presents a diamond-based metal-insulator-metal campanile probe that adiabatically compresses mid-infrared light into sub-wavelength volumes, enabling high-efficiency, high-resolution mapping of locally driven photocurrents in graphene and offering a robust platform for exploring low-energy carrier dynamics in atomically thin materials.
This study demonstrates that thermal annealing of RF-sputtered -GaO thin films on silicon substrates significantly enhances their crystalline structure and refractive index, with the most pronounced improvements observed at 1000 C.
This paper theoretically and numerically investigates light propagation in hyperuniform disordered photonic crystal slabs, revealing that intrinsic radiative loss (non-Hermiticity) fundamentally alters disorder scattering from a power-law dependence to a form dominated by a finite constant plus a modified power-law term, a finding validated through simulations with realistic parameters.
This study utilizes machine learning to reveal that charged domain walls in two-dimensional bismuth possess lower energy than uncharged ones and host topological interfacial states with accidental band crossings at the Fermi level, highlighting their potential for next-generation ferroelectric devices.
This paper proposes a general construction principle for non-Hermitian topological operators in any dimension that maintain real eigenvalues and robust zero-energy boundary modes without exhibiting the non-Hermitian skin effect, thereby extending the bulk-boundary correspondence to a broad class of non-Hermitian insulators and semimetals.
Motivated by recent experiments, this paper derives general expressions for photonic heat transport through a Josephson junction in a dissipative environment, demonstrating that the heat current remains sensitive to Josephson coupling on the insulating side with opposite behaviors for series and parallel configurations, while also predicting heat rectification properties.
The authors developed a compact, low-power (1 µW) tunnel diode oscillator operating at 140 MHz with enhanced amplitude stability and phase noise (-115 dBc/Hz at 1 MHz offset), demonstrating its suitability for scalable qubit readout in semiconductor and liquid helium systems.
This paper establishes that symmetric anisotropic exchange interactions, without requiring Dzyaloshinskii-Moriya interaction or local inversion-symmetry breaking, can induce a planar magnon thermal Hall effect characterized by angular-dependent thermal conductivity and rich Berry curvature structures.
This study demonstrates the amplification of microwave pulses using a single-qubit engine fueled by quantum measurement backaction, validating indirect work estimation methods and confirming the system's stability against decoherence and drifts.
This paper demonstrates that spiral magnets enable the precise, topologically protected positioning of bimerons via a rotating magnetic field, which displaces them by exactly one spiral period per rotation, offering a low-power alternative to traditional pinning-based racetrack memory.