360 papers
Using angle-resolved photoemission spectroscopy, researchers successfully created, detected, and controlled quasi-steady dark excitons in doped SnSe2, revealing a novel anisotropic excitonic gap phase that extends the study of dark excitons from ultrafast timescales to quasi-equilibrium conditions.
This paper demonstrates that near-field thermal transport in nanoparticles can be dynamically modulated through selective surface mode excitation by tuning the distance between reflectors and nanoparticles within a multilayer cavity, offering a novel mechanism for nanoscale thermal management and sensing.
By engineering the stacking configuration and twist angle of orthogonally-twisted CrSBr van der Waals magnets, researchers demonstrate a highly tunable magnetic hysteresis that enables on-demand switching between volatile and non-volatile memory states and controls abrupt spin-reversal processes, offering a new pathway for miniaturized spintronic devices.
This paper establishes a unified theoretical framework based on spinful quasiperiodic systems that achieves exact solvability for all seven fundamental localization phases, including novel models with mobility edges, and proposes feasible experimental schemes for their realization.
This paper extends the analysis of critical Fermi surface deformations at an Ising-nematic quantum critical point by employing quantum Boltzmann equations that include collision effects, revealing that while bosonic dynamics do not alter the solutions, the system supports a robust zero-sound mode and an infinite family of discrete higher-order harmonic modes alongside a continuous particle-hole band.
This study demonstrates that epitaxial growth of monolayer NbSe on graphite naturally forms moir{é} superlattices where interlayer coupling between graphite states and NbSe suppresses charge-density wave enhancement, offering a new pathway for controlling collective states in 2D materials without manual assembly.
By utilizing Coulomb engineering to tune dielectric screening in ultra-clean TiSe heterostructures, the study demonstrates that while the band gap is renormalized, the charge-density-wave transition remains unaffected, thereby ruling out excitonic insulator physics as the primary driver of the phase transition in TiSe.
This paper demonstrates that applying commensurable two-tone Floquet drives to fluxonium qubits enhances coherence by creating tunable dynamical sweet spots with wider dephasing time peaks and enables improved phase gate performance compared to single-tone drives.
Using scanning tunnelling microscopy to analyze the local density of states near defects, this study experimentally confirms the topological obstruction and key band structure features of magic angle twisted bilayer graphene, including chirality patterns, Lifshitz transitions, and Fermi velocity renormalization.
This study presents a low-noise, sub-100 nm magnetic tunnel junction vortex sensor with a perpendicularly magnetized reference layer that achieves a wide dynamic range exceeding 200 mT and high sensitivity for out-of-plane magnetic field detection by leveraging vortex core dynamics to minimize defect-induced noise.
This paper demonstrates that calculating spin currents in crystals with spin-orbit coupling requires a modified operator derived from iterative elimination of remote bands, as the standard definition based on group velocity fails to capture dominant interband mixing effects that can lead to qualitatively incorrect results.
This paper presents the first comprehensive experimental and theoretical analysis of both first- and second-order dissipative phase transitions in a two-photon driven Kerr superconducting resonator, characterizing critical dynamics such as hysteresis and symmetry breaking to validate Liouvillian spectral theory for engineering criticality in quantum information applications.
This paper demonstrates a critical quantum sensor using a superconducting parametric Kerr resonator that achieves quadratic precision scaling in frequency estimation near a second-order dissipative phase transition, thereby surpassing the linear scaling limit of classical protocols.
This paper demonstrates a nanoscale sensing technique that utilizes a single nitrogen-vacancy center in diamond to detect and map boron vacancy defects in hexagonal boron nitride by measuring changes in spin relaxation time () caused by cross-relaxation, thereby enabling optical-free characterization of 2D spin systems beyond the diffraction limit.
Using terahertz emission spectroscopy on wedge-shaped heavy metal|Ni heterostructures, this study provides the first direct experimental evidence that orbital mean free paths in heavy metals are ultrashort (sub-nanometer scale) and shorter than spin counterparts, confirming that bulk inverse orbital Hall effect governs orbital-to-charge conversion.
This interdisciplinary paper proposes that the one-form global symmetry and its anomaly serve as a unifying organizing principle to constrain and uniquely identify the minimal topological orders underlying various fractional quantum Hall systems based on their Hall conductivity.
This paper introduces Poly2Graph, an automated pipeline for generating HSG-12M, a pioneering 16.7-million-scale dataset of spatial multigraphs derived from non-Hermitian crystal energy spectra, which bridges condensed matter physics and geometry-aware graph learning by preserving vital geometric information often discarded in existing benchmarks.
This paper proposes that circularly polarized laser light can drive monolayer amorphous carbon into topological phases characterized by regular and anomalous edge modes, demonstrating that local atomic coordination and the spectral localizer marker are key to engineering topological states in disordered, non-crystalline materials.
This paper proposes the existence of a novel interfacial topological quasiparticle called the "Janus skyrmion," which features coexisting asymmetric helicity structures at magnetic interfaces and exhibits unique one-dimensional dynamics driven by spin currents and thermal fluctuations without the skyrmion Hall effect.
This paper demonstrates that time-dependent tuning of confining potentials in electron-on-helium systems enables fast, high-fidelity two-qubit gates (specifically and CZ) with minimal control-induced errors, providing a methodology to isolate these effects from environmental noise for future device design.