2227 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 utilizes polarization-resolved Raman spectroscopy and density-functional theory to demonstrate that cobalt intercalation in CoNbSe reconstructs the vibrational spectrum through zone folding without contributing Raman-active modes, while revealing spin-phonon coupling in A modes despite the absence of discontinuities at the altermagnetic transition.
This paper demonstrates that machine learning, specifically random-forest regression, can accurately predict the optimal crop-length parameter for calculating topological invariants in finite non-Hermitian chains by linking it to physical decay lengths and characteristic polynomial structures, thereby providing a robust, generalizable, and disorder-resilient method to capture topology near phase transitions.
This paper demonstrates that the checkerboard lattice within a weak-coupling Hubbard model naturally supports altermagnetism, characterized by a sequence of phase transitions from a nonmagnetic semimetal to an altermagnetic insulator and the emergence of chiral, direction-dependent magnetic excitations that mirror the alternating spin splitting of the electronic bands.
This paper predicts that intercalating bilayer graphene with nonmagnetic WSSe or magnetic MnSSe Janus monolayers induces a layer-selective switch in Rashba spin textures, enabling independent gate-tunable control of opposite spin current directions in the top and bottom graphene layers for advanced spintronic applications.
This paper demonstrates that while coherence estimation in finite nonequilibrium systems is typically limited to a transient window due to the breakdown of scaling between the Liouvillian gap and optimal sensing time, coupling the system to a quantum cavity under thermal bias can transform this transient optimization into a sustained steady-state metrological resource.
This paper proposes a classical reversible computing architecture using coherent spin dynamics in Ge/Si hole spin quantum dots, where unitary rotations driven by low-energy voltage pulses enable logic and data transport without heat dissipation, achieving gate energies orders of magnitude below the Landauer limit while maintaining dual-use compatibility with quantum algorithms.
This paper demonstrates, through multiple numerical simulations, the existence of a long-lived chiral graviton mode in a non-Abelian lattice fractional quantum Hall state realized in a bosonic Harper-Hofstadter model, providing a topological-sector-independent signature observable via geometric quenches in current cold-atom experiments.
This study develops a machine-learning interatomic potential framework combining GAP and MACE models with lattice-dynamical and non-equilibrium molecular dynamics simulations to provide a more accurate and internally consistent description of phonon-mediated thermal transport and grain boundary resistance in nanocrystalline silicon compared to classical potentials.
This study demonstrates that placing twisted double bilayer graphene on an antiferromagnetic CrOCl substrate enhances correlated insulating states at half-filling through interfacial charge transfer rather than magnetic exchange, offering a new pathway for engineering correlated states in moiré systems.
This study demonstrates that decoupled twisted double bilayer graphene serves as a tunable platform for double quantum Hall systems, where magnetotransport measurements reveal a fractional state at = -1/2 that transitions from a two-component Halperin-Laughlin state to a one-component non-Abelian state upon adjusting the displacement field.