831 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 paper proposes a preformed pair mechanism to explain the nonmonotonic dependence of the maximal critical temperature on the number of conducting layers in cuprates, attributing the peak to an optimal balance between pair compactness and lightness that is disrupted by rising kinetic energy in thicker multilayers.
This paper introduces a pre-patterned bottom-contact fabrication method that avoids on-flake lithography to create clean, atomically abrupt superconductor-topological material interfaces, thereby enabling significantly improved and longer-range Josephson coupling in van der Waals devices.
This paper demonstrates that in a nematic Hund's metal, dynamical correlation effects beyond a quasiparticle description are essential for sustaining robust superconductivity by simultaneously enhancing orbital differentiation of the gaps and preventing coherence collapse, leading to a complex, frequency-dependent pairing structure.
This study demonstrates that magnetization anomalies observed in copper-doped apatite LK-99 materials arise from glassy magnetic freezing of interacting covellite (CuS) clusters rather than superconductivity, attributing the effects to the material's inherent multiphase complexity.
This paper introduces a zero-bias superconducting voltage amplifier that utilizes the bipolar thermoelectric effect and negative differential resistance in an asymmetric SIS junction to achieve a 20 dB gain and broadband frequency response up to 180 MHz solely from a thermal gradient, offering a promising solution for cryogenic signal processing and quantum instrumentation.
This study demonstrates that combining magneto-optical imaging of magnetic flux distribution with quasiparticle spectroscopy via London penetration depth measurements provides an efficient method to correlate magnetic screening and in-gap states with internal quality factors, thereby enabling the optimization of epitaxial niobium films for superconducting qubits.
This paper reports the discovery of intrinsic spin-polarized p-wave superconductivity in the kagome material RbVSb, evidenced by unique time-reversal symmetry-breaking hysteresis and asymmetric field-re-entrant phenomena that suggest a nodal topological superconducting state with Majorana flat bands.
Using large-scale GPU-accelerated DMRG simulations on a diagonally oriented square lattice, this study reveals a doping-dependent phase diagram in the hole-doped Hubbard model featuring distinct diagonal stripe, holon Wigner crystal, and infinite-length stripe phases, providing the first controlled numerical evidence of a dominant pair density wave emerging from the interplay between charge order and short-range superconductivity.
This paper systematically classifies strain-induced piezomagnetic effects in collinear altermagnets through symmetry analysis and first-principles calculations, revealing distinct band-filling and exchange-driven mechanisms while demonstrating how strain can drive the transition from unitary to non-unitary triplet superconductivity.
This paper presents a generalized set of self-consistent Gor'kov-Hedin-Baym equations that integrate spin-dependent electron-electron and electron-phonon interactions, relativistic effects, and lattice correlations to provide a unified framework for studying non-trivial superconductivity in candidate materials, which yields a generalized Migdal-Eliashberg theory and naturally incorporates ladder vertex corrections.