745 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 that superconductivity in Ruddlesden-Popper nickelates arises only when local shear strain within the Ni-O framework falls within a specific bounded window, a mechanism that unifies diverse experimental observations regarding pressure, epitaxial constraints, and sample sensitivity.
Using atomic-resolution scanning tunneling microscopy and spectroscopy on cryogenically transferred (La,Pr)₃Ni₂O₇ films, this study reveals an intrinsic nodeless superconducting gap with two distinct energy scales, distinguishing it from V-shaped spectra caused by oxygen loss and providing key insights into the pairing symmetry of bilayer nickelates.
This paper demonstrates that rapidly increasing interaction strength in an attractive Hubbard model enhances charge-density-wave correlations by converting nonlocal pairs into doublons, thereby providing a method to distinguish between unpaired Fermi liquids and pseudogap phases of preformed pairs in cold-atom systems.
This paper employs a slave-spin representation combined with mean-field theory and random phase approximation fluctuations to analyze the phase diagram, spectral properties, Josephson current, and microwave response of a strongly interacting quantum dot coupled to superconducting leads, successfully capturing the competition between Kondo physics and superconductivity while addressing the limitations of mean-field theory in the doublet regime.
Using electrical magnetotransport measurements on critically doped homoepitaxial single crystal heavily boron-doped diamond films, researchers identified intrinsic electronic granular superconductivity characterized by an emergent, magnetically tunable three-phase anisotropic order and a spontaneous Hall anomaly, suggesting that electron correlations drive this phenomenon in an otherwise isotropic material.
This paper highlights the distinct advantages of planar Josephson junctions over traditional overlap junctions—such as enhanced magnetic sensitivity, improved impedance matching, and design flexibility—and showcases their emerging applications in super-resolution imaging, memory, and programmable diodes while addressing future challenges in superconducting electronics.
This study demonstrates that Coulomb interactions in normal-superconducting quantum-dot systems significantly degrade current precision and suppress violations of quantum uncertainty bounds by renormalizing resonant conditions and suppressing superconducting coherence, even when average currents remain largely unaffected.
This paper demonstrates that four-terminal niobium planar Josephson junctions enable field-free, broadly tunable, and reconfigurable superconducting diodes with effectively infinite nonreciprocity, offering a promising pathway for future digital and neuromorphic computing applications.
This paper investigates multiband superconductivity within the exactly solvable Hatsugai-Kohmoto model by classifying symmetry-allowed gap structures in a two-orbital system and computing critical temperatures and order parameters to establish a systematic framework for analyzing the interplay of strong correlations, orbital structure, and pairing symmetry.
This theoretical study demonstrates that Altermagnet/Ising superconductor junctions with spin-active interfaces exhibit strongly anisotropic charge and spin conductance, efficient spin filtering, and robust nonreciprocal transport driven by the interplay of intrinsic spin-orbit coupling, anisotropic spin textures, and spin-dependent interfacial scattering.