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.
This paper demonstrates that intermediate inter-layer coupling combined with competitive non-Hermitian directed amplification can enforce robust helical edge states in stacked quantum spin Hall systems without relying on symmetry protection, thereby challenging the conventional view that such coupled layers inevitably form trivial phases.
This study reports the first direct spectroscopic observation of antimagnons—negative-energy spin waves characterized by inverted dispersion and left-handed precession—in an ultrathin BiYIG film driven into a non-equilibrium reversed state by spin-orbit torque, thereby establishing a foundation for the emerging field of antimagnonics.
This paper demonstrates that repulsive interactions, mediated by quantum geometry, can drive a valley-helical superconducting state in time-reversal-symmetric rhombohedral graphene, which outcompetes conventional pairing at intermediate coupling and exhibits unique topological and magnetic signatures.
This paper theoretically demonstrates that applying a displacement field to Bernal-stacked bilayer graphene stabilizes even-denominator Moore-Read and partonic fractional quantum Hall states in the Landau level by softening short-range electron repulsion, thereby driving transitions from composite fermion Fermi liquids and Jain states to these exotic topological phases.
This paper demonstrates the creation and characterization of a quasi-one-dimensional, positionally disordered spin chain in diamond by leveraging nitrogen incorporation along CVD step bunches, enabling the use of nanoscale quantum sensing to probe local spin autocorrelations and dipolar transport within this engineered low-dimensional quantum system.
This paper demonstrates that gate-defined normal-superlattice-normal graphene junctions serve as a versatile platform for quantum transport, revealing distinct regimes including Fabry-Pérot interference, the Hofstadter butterfly spectrum, and a newly identified "supersnake" state composed of alternating cyclotron arcs.
This paper reports that Dyakonov-Perel-type magnon spin relaxation governs spin current transport along the easy axis in uniaxial antiferromagnetic insulators Cr₂O₃ and α-Fe₂O₃, evidenced by magnetic field-induced signal enhancements and diffusion length behaviors that align with a theoretical model.
This study provides the first direct experimental evidence of vortex-mediated spin current injection in an NbSe2/LAFO heterostructure, demonstrating that vortices in the liquid phase act as efficient carriers of spin angular momentum through a sign-reversed thermoelectric signal, thereby establishing a new pathway for superconducting spintronic devices.
This study employs time-dependent density-functional theory to characterize the plasmonic response of twisted bilayer graphene, revealing that large-angle structures preserve Dirac plasmons with geometric scaling while small-angle magic-angle configurations exhibit distinct interband plasmons arising from transitions within quasi-flat bands.
By applying an ultralow 0.1% biaxial tensile strain to a ReS2/MoSe2 van der Waals heterostructure, researchers achieved an 8-fold enhancement in photoluminescence quantum yield through efficient exciton funneling and increased transition dipole moments, a mechanism confirmed by theoretical calculations to be distinct from optical interference effects.