744 papers
Superconductivity is a fascinating state of matter where materials conduct electricity without any resistance, often defying our everyday expectations of how energy behaves. Researchers in this field explore the quantum mechanics behind these phenomena, seeking new materials that can operate at higher temperatures or under more practical conditions. This work holds the promise of revolutionizing everything from power grids to medical imaging devices, making the invisible world of quantum physics feel increasingly tangible and useful.
At Gist.Science, we monitor the arXiv database continuously to bring you the very latest preprints in Cond-Mat — Supr-Con as soon as they are posted. For every new submission, we generate both detailed technical summaries for experts and clear, plain-language explanations for curious readers, ensuring that cutting-edge discoveries are accessible to everyone regardless of their background. Below are the latest papers in this dynamic field, ready for you to explore.
This study resolves the misclassification of certain intercalated layered superconductors as anisotropic 3D systems by developing an extended 2D Tinkham model that accounts for interlayer misalignment, thereby enabling the accurate extraction of intrinsic bulk 2D superconducting properties and BKT transitions in materials like (Li,Fe)OHFeSe and (CTA)0.5SnSe2.
This paper investigates the superconducting diode effect in asymmetric Hatsugai-Kohmoto models to demonstrate that strong electron-electron correlations significantly enhance the effect's quality factor, thereby bridging a gap in understanding nonreciprocal supercurrents in strongly correlated systems.
This paper theoretically demonstrates that spin-orbit coupling induces avoided crossings in the dispersion relation of spinful Josephson junctions, leading to pronounced multiple Andreev reflection features in the subharmonic gap structure whose visibility under an external magnetic field is governed by the spin polarization of the bands.
This study demonstrates that the Kohn-Luttinger mechanism for repulsion-driven superconductivity remains robust against strong spatial symmetry breaking, exhibiting a universal nonmonotonic transition temperature that peaks at Fermi-energy scales before decaying exponentially in two-dimensional models with Ising and Rashba spin-orbit coupling.
This paper proposes a microscopic mechanism for superconductivity in a fractionalized Fermi liquid, where small electron doping creates spinon-chargon bound states that interact via emergent dipolar forces peaked at the antiferromagnetic wave vector due to the projective action of translation symmetry.
This paper presents a generalized, loss-inclusive coupled-mode equation framework for kinetic-inductance traveling-wave parametric devices that is experimentally validated through parameter-free agreement with multi-harmonic generation data, revealing that the device's nonlinear parameter scales with the theoretical depairing current rather than the critical current.
Using spin-polarized scanning tunneling spectroscopy, this study demonstrates that near-zero-energy states observed on the surface of the iron-based superconductor Fe(Te,Se) at both structural defects and defect-free regions are actually topologically trivial Yu-Shiba-Rusinov states rather than Majorana zero modes, highlighting the critical need for spin-dependent analysis to avoid misidentification.
This paper demonstrates that unavoidable long-range disorder in graphene Josephson junctions breaks inversion symmetry to produce a supercurrent rectification effect with over 20% efficiency under a small out-of-plane magnetic field, establishing a pathway for graphene-based Josephson diodes.
This paper proposes and validates a method to unambiguously extract individual current-phase relation harmonics in asymmetric SQUIDs by analyzing the distinct Bessel-function-modulated signatures of the ac-flux-driven diode effect, offering a robust spectroscopic tool for investigating unconventional superconductors.
This study utilizes highly sensitive ac calorimetry to observe bulk magneto-quantum oscillations in the anisotropic multiband superconductor VGa, confirming the characteristics of its dominant Fermi-surface pocket and demonstrating the technique's capability to probe topological orbital hybridization through the invariance of net Berry flux.