2818 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 a quantum simulator using a driven Kerr parametric oscillator to create a tunable asymmetric double-well potential, revealing counter-intuitive effects where weak asymmetry suppresses activation rates and resonance widths oscillate with well parameters, thereby paving the way for analog simulations of chemical reactions like proton transfer.
Through extensive computational investigations, this study identifies new thermodynamically stable carbon defect configurations in MoS2 and refutes recent claims that these impurities cause electrical doping, demonstrating instead that they act as deep carrier traps.
This paper theoretically investigates the nonlinear Hall effect in two-dimensional topological Dirac semimetals under an in-plane magnetic field by solving the quantum kinetic equation for the Wigner distribution function and proposes experimental verification through anomalous Hall resistivity measurements in specific materials like SnTe, WTe, WSe, and CeBiPd.
This paper reveals that while the van der Waals gap in two-dimensional materials suppresses gate leakage, it critically limits device scaling by increasing contact resistance and introducing parasitic capacitance, suggesting that "zipper-like" quasi-covalent interfaces are necessary to overcome these barriers.
This paper demonstrates that in MoTe/WSe moiré bilayers at two holes per unit cell, long-range Coulomb interactions can induce a robust Quantum Valley Hall insulating phase and, when combined with a small Zeeman field, drive a transition to a Quantum Anomalous Hall state, while also revealing a competition between -wave and -wave topological symmetries arising from band mixing.
This paper proposes a method to detect weak Lorentz-violating backgrounds in noncentrosymmetric crystals by measuring a distinct -periodic angular modulation in the nonlinear shift photocurrent, which arises from momentum-odd corrections to the Bloch Hamiltonian and offers sensitivity to coupling strengths as low as .
This study demonstrates through fully self-consistent nonequilibrium Green's function calculations that weak electron-phonon coupling in helical molecular junctions is insufficient to generate significant chiral-induced spin selectivity (CISS) in two-terminal transport, yielding negligible spin polarization contrary to results from approximate treatments.
This paper establishes a rigorous, model-independent criterion for finite-temperature quantum adiabaticity in driven many-body systems by deriving bounds on mixed-state fidelity that reveal a universal scaling where the threshold driving rate factorizes into zero-temperature system-size contributions and a temperature-dependent factor that transitions from unity at low temperatures to linear behavior at high temperatures.
This paper introduces a general and efficient semiclassical framework for computing phase-resolved multidimensional single- and double-quantum spectra of anharmonic molecular polaritons, which successfully explains the polariton bleach effect and enables the direct probing of anharmonicity imprints on double-excitation manifolds.
This study reports the experimental observation of higher odd-order (third-, fifth-, and seventh-order) nonlinear Hall effects in magnetic topological insulator Mn(Bi1-xSbx)2Te4 thin flakes, attributing the phenomenon to Berry curvature multipoles and demonstrating its dependence on the Néel temperature and charge neutral point.