2377 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 study employs a combined first-principles and Wannier-based model to reveal that the direct-to-indirect bandgap transition in layered MoS is driven not only by interlayer - coupling but also critically by previously overlooked - and - orbital interactions between neighboring sulfur atoms.
This paper presents an improved analytical model for metallic tunnel junctions that offers greater accuracy than the traditional Simmons model by deriving new formulas for tunneling current and conductance at finite voltage and temperature, which align more closely with the Wentzel-Kramers-Brillouin approximation and demonstrate significant practical differences when fitted to experimental data.
This paper proposes a protocol to probe magnetization dynamics in flat-band ferromagnets by investigating the nucleation and growth of magnetic bubbles, revealing how non-trivial quantum geometry governs dynamics in itinerant ferromagnets and how chiral edge modes can be accessed in quantum Hall ferromagnets, with specific relevance to twisted MoTe and graphene-based systems.
This paper establishes a theoretical framework demonstrating that in spin-orbit-free compensated magnets, geometric constraints imposed by zero net magnetization can protect unconventional spin degeneracies even in the absence of conventional symmetry protection.
This paper demonstrates that exciting nitrogen-vacancy (NV) ensembles at the NV0 zero-phonon line (575 nm) induces spin-selective electron tunneling that converts NV- to NV0 while preserving spin polarization, thereby enabling the previously discarded NV0 fluorescence to contribute to the measurable spin contrast and improve sensing sensitivity.
This study employs a comprehensive Molecular Dynamics framework to demonstrate that magnesium ion doping at surface sites significantly enhances the chemical stability of hydroxyapatite, offering optimized guidelines for developing advanced dental materials to combat tooth decay.
Using heat kernel methods, this paper demonstrates that the Atiyah–Singer index theorem extends to non-Hermitian Dirac operators, proving that their index remains topologically protected provided the operators are diagonalizable and satisfy specific ellipticity conditions.
This paper presents a physics-based model incorporating both intrinsic and extrinsic loss mechanisms to explain the temperature-dependent quality factor limits of epitaxial AlN acoustic resonators, validated through experimental measurements from 6.5 K to 300 K and benchmarked against high-frequency HBAR data to guide the design of cryogenic microwave components for quantum hardware.
Using time-resolved photoluminescence spectroscopy on MoSe/graphene heterostructures, this study demonstrates that sub-nanometer-range exciton transfer is governed by charge tunneling rather than dipolar interactions, as evidenced by a consistent ps transfer time that vanishes when a 1 nm hexagonal boron nitride spacer is introduced.
This paper predicts the emergence of nontrivial topological magnon states in skyrmionium lattices with zero topological charge by introducing the concept of weighted magnetic flux and mapping the system to the Haldane model, thereby challenging conventional wisdom and proposing experimental methods to validate these findings through magnon thermal Hall conductivity.