3224 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.
The paper establishes that for gapped non-periodic insulators, the existence of an orthogonal basis of Wannier functions with finite second moments is a sufficient condition for the vanishing of the Chern marker, thereby implying topological triviality.
This paper introduces a high-throughput database of thousands of theoretically twistable 2D semimetals and insulators derived from the Topological 2D Materials Database, providing a foundational resource for exploring moiré superlattices and strongly correlated physics.
This paper provides a complete characterization of the ground state manifold of the flat band interacting Hamiltonian for magic angle twisted bilayer graphene, proving that it consists precisely of the linear span of ferromagnetic Slater determinants.
This paper reviews various mechanisms, such as magnetic fields, time-dependent potentials, and multi-terminal configurations, that overcome the limitations imposed by time-reversal symmetry and Onsager relations to enable spin-selective transport in noninteracting electron systems, with potential implications for the chiral-induced spin selectivity (CISS) phenomenon.
This study utilizes low-temperature STM/STS to demonstrate that while polymer-free transfer preserves the structural integrity of 9-atom-wide armchair graphene nanoribbons on graphene substrates, it induces significant degradation in nanoribbons with modified edge topologies, thereby establishing a critical framework for assessing post-processing modifications essential for reliable nanoelectronic device integration.
This paper demonstrates that gate-defined bilayer graphene quantum Hall antidots enable a tunable crossover from Coulomb-dominated to Aharonov-Bohm transport regimes, evidenced by a doubling of conductance oscillation periods and a shift in magnetic field periodicity as the coupling between localized antidot states and extended edge states is controlled.
This paper proposes a method to quantify the Gibbs measure of disordered crystals up to the melting point by demonstrating that the crystal lattice can be uniquely reconstructed from the statistics of Voronoi cells, specifically utilizing four persistent facets that survive thermal fluctuations as a fundamental signature of the solid phase.
This study demonstrates that gate-defined bilayer graphene antidots operating in the Coulomb-dominated regime provide a robust and tunable platform for directly measuring the fractional charges of quasiparticles in various quantum Hall states through straightforward conductance measurements.
This study provides direct spectroscopic evidence of electric-field tunable giant orbital Zeeman effects with Landé g-factors up to ~230 at the graphene/FeGeTe interface, arising from the interplay of local-moment canting and itinerant orbital moments, which offers a promising platform for electrically controlled spintronic and orbitronic devices.
Using a non-equilibrium Keldysh field theory approach without the replica trick, this study analyzes transport and thermoelectric properties in a spinful Sachdev-Ye-KitaY quantum dot coupled to metallic leads, revealing distinctive non-Fermi liquid signatures and enhanced thermoelectric effects that offer experimentally accessible fingerprints of SYK physics.