2798 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 demonstrates that interfacial spin transport in Co|Pt heterostructures remains remarkably robust against significant increases in interface roughness, as revealed by terahertz emission spectroscopy which shows only a minor (~30%) decrease in spin-current transparency despite a threefold increase in roughness and grain size.
This paper introduces a self-consistent spectral quadrature framework that approximates many-body Green functions via Gauss-Christoffel quadrature, guaranteeing spectral positivity and exact moment reproduction. An SVD-based rank-selection criterion identifies the resolvable pole structure. Applied to the Anderson impurity and Hubbard models, the method captures non-perturbative features including multi-peak spectra and Mott-gap formation.
This paper analytically demonstrates that orbital magnetization can be equivalently computed via linear response to a periodic magnetic field or as the derivative of the grand potential with respect to a uniform field, thereby identifying orbital magnetization as the energy associated with the spectral flow underlying the Středa formula.
The paper predicts a novel hybrid bulk electromagnetic mode in Weyl semimetals, arising from the interplay between the chiral anomaly and wave-vector orientation, which serves as a unique experimental signature of the material's quantum properties through observable features in electron energy-loss spectroscopy.
This paper presents a levitated microparticle spectrometer that exploits a resonant amplification of position fluctuations to characterize the spectral properties of Random Telegraph Noise across six decades of timescale, offering a novel platform for studying non-equilibrium stochastic dynamics in systems ranging from quantum technologies to biological and social behaviors.
This study demonstrates that microwave-driven Floquet-Fano interference in a ring-chord quantum dot structure coupled to ferromagnetic leads can significantly enhance spin-caloritronic performance, achieving a thermoelectric figure of merit of approximately 12 and a spin figure of merit of nearly 18.
This paper demonstrates that integrating a Ta/W bilayer system into SOT-MTJ devices significantly enhances spin-orbit torque efficiency through orbital Hall contributions, enabling robust perpendicular magnetic anisotropy, high-temperature compatibility, and a novel proof-of-concept for vertical non-local switching to simplify MRAM fabrication.
This paper demonstrates that in noncentrosymmetric metals where lower-order responses are forbidden by symmetry, the leading cubic orbital magnetization arises from three distinct quantum-geometric channels—specifically a mixed electric-magnetic positional-shift quadrupole, a quantum-metric drift term, and an orbital-moment octupole—which can be experimentally distinguished via third-harmonic magneto-optical Kerr spectroscopy.
This paper reports the first terahertz spectroscopic measurements of ultrastrongly coupled graphene Landau polaritons, demonstrating that despite reaching strong coupling regimes where a superradiant phase transition was theoretically expected to evade the "No-Go" theorem, no such transition occurs, with the observed polariton dispersion fully explained by a standard Hopfield Hamiltonian.
This paper theoretically demonstrates that quantum anomalous Hall insulators support unidirectional, acoustic chiral edge plasmons driven by Berry curvature and anomalous Hall conductivity, providing a quantitative explanation for recent experimental observations and insights for chiral plasmonic applications.