2446 papers
Explore the fascinating intersection where quantum materials meet the complexity of everyday environments in the Cond-Mat — Mes-Hall section. This field investigates how tiny particles behave when caught between the orderly world of single atoms and the chaotic nature of bulk matter, revealing the hidden rules that govern electricity, magnetism, and heat in novel substances.
Gist.Science brings these cutting-edge discoveries to you directly from arXiv, the leading repository for physics preprints. We process every new submission in this category as soon as it appears, offering both straightforward, plain-language explanations and deep technical summaries to help researchers and curious minds alike grasp the latest breakthroughs without getting lost in dense equations.
Below are the most recent papers in this dynamic area of condensed matter physics, ready for you to explore.
This paper presents a unified gauge-invariant theory of dynamical quantum transport that reconciles single-electron and plasmonic dynamics, demonstrating how flying qubits in graphene propagate coherently by "surfing" on self-induced plasmon waves to enable ultrafast quantum control at gigahertz/terahertz frequencies.
This study numerically demonstrates that tuning the twist angle in a trilayer magnetic moiré superlattice enables precise control over magnonic band structures and the formation of antiphase nanocavity modes in the outer layers, offering superior tunability and confinement compared to bilayer counterparts.
This paper proposes a magnon-driven anomalous Hall effect in altermagnets, demonstrating that the coherent excitation of chiral magnons induces a Hall conductivity determined solely by the chirality of Néel-order precession, thereby enabling a distinct transport phenomenon that can exist even when the static anomalous Hall effect is symmetry-forbidden.
This paper proposes a novel theoretical framework treating intervalley coupling as backscattering from Ge-containing crystal planes, demonstrating that carefully designed, non-periodic Germanium concentration profiles achievable with current epitaxy techniques can boost valley splitting in Si/SiGe quantum wells beyond the 1 meV scale without requiring precise atomic control.
This paper presents a unified open-quantum-system framework demonstrating that tuning the polarization ellipticity of excitation light in monolayer WSe2 enables controlled transitions between bright and dark exciton valley coherence, while out-of-plane and in-plane magnetic fields further facilitate the suppression of coherence decay and optical readout of dark states, respectively.
This paper combines theoretical modeling and experimental validation using random scattering and scanning optical interferometry to characterize the anisotropic propagation and coupling of GHz surface and bulk acoustic waves in (001)-cut gallium arsenide, providing a method to optimize classical and quantum acoustic devices.
This paper presents a gauge-covariant, first-principles analysis of orbital magnetism across various material classes, demonstrating how the interplay between localized electronic character and band structure-induced Berry phases dictates magnetic responses and suggests new avenues for enhancing orbital magnetism in orbitronics.
This paper proposes a theoretical framework using inelastic x-ray scattering to isolate and characterize the internal charge distribution of optically pumped Wannier excitons in transition metal dichalcogenides by analyzing differential scattering spectra.
This study demonstrates that constructing a vertical graphene-MoS2 heterostructure field-effect transistor enhances charge transport and thermal stability through efficient interfacial charge transfer, which improves Fermi-level alignment, reduces Schottky barriers, and suppresses extrinsic scattering to achieve significantly higher mobility and conductivity stability at elevated temperatures compared to pristine MoS2 devices.
In this reply, the authors refute the concerns raised by Bordag et al. regarding their previous work on graphene's electric conductivity by demonstrating that the criticisms stem from misinterpretations and misapplications of their model, while reaffirming the validity, physical consistency, and correctness of their original findings derived from both the Kubo formula and quantum field theory.