849 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 demonstrates that the terahertz optical conductivity of atomic layer deposition-grown NbN thin films deviates from standard BCS predictions and is accurately described by Dynes electrodynamics, revealing a small, temperature-independent pair-breaking rate and thickness-dependent evolution of the energy gap and superfluid density.
This paper reports the realization of de Gennes' predicted absolute superconducting switch by demonstrating that $EuS/Au/Nb/EuS$ structures, leveraging a heavy metal interface to enhance spin-mixing conductance, can completely quench superconductivity in the parallel magnetic configuration down to 20 mK, thereby achieving a near-unity switching ratio essential for low-power electronics.
This paper derives exact analytical solutions for nonhermitian topological zero modes at smooth domain walls, revealing a universal relation between scalar fields and the decay rates and oscillation wavelengths of these boundary modes that quantifies the bulk-boundary correspondence in line-gapped systems.
This paper demonstrates that high- and low-frequency light drives can induce and control novel spin-triplet states and odd-frequency superconducting correlations in unconventional magnets and altermagnets, revealing new phases absent in static systems.
This paper demonstrates that while the effective homogeneous exchange field model accurately describes thin-film superconductor/insulating magnet heterostructures by producing well-defined spin splitting, it fails for superconductor/metallic magnet systems where the effect is chaotic, though the latter still support significant triplet correlations suitable for spintronics.
This study reports high-precision muon Knight shift measurements on a single crystal of SrRuO that successfully eliminate stray-field artifacts to confirm a significant reduction in spin susceptibility below the critical temperature, providing strong evidence for spin-singlet-like pairing symmetry in this -electron superconductor.
This paper reviews how the fractionalized Fermi Liquid (FL*) state, derived from doping quantum spin liquids via the Ancilla Layer Model, resolves key experimental discrepancies in hole-doped cuprates by explaining the small hole pockets in the pseudogap metal and the nearly isotropic quasiparticle velocities in the -wave superconductor.
Using ultralow-temperature spectroscopic-imaging scanning tunneling microscopy, the study reveals that while the superconducting gap in 2H-NbSe2 remains spatially uniform, the spectral weight near the coherence peak is modulated by the charge density wave in a pattern dictated by the surface's broken in-plane inversion symmetry and potential Ising spin-orbit coupling.
This paper reviews emerging evidence for time-reversal symmetry breaking in low-temperature superconductors, proposing a new class of "fragile magnetic superconductors" modeled by triplet pairing while critically examining whether the muon spin relaxation measurement process itself might induce the observed symmetry breaking, using LaNiGa as a key case study.
This study investigates thermal and non-local electrical transport in four-terminal chiral topological Josephson junctions, establishing that robust half-quantized thermal conductance serves as a reliable probe for single chiral Majorana modes only under specific low-doping, intermediate-to-long junction conditions, while higher Chern numbers and finite-size effects generally disrupt quantization.