837 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 utilizes scanning tunneling microscopy to demonstrate the coexistence of static, unidirectional stripe order and s-wave superconductivity in NaAlSi, revealing that the charge modulation imposes a periodic modulation on the superconducting coherence peak intensity.
This study characterizes the aging and thermal annealing of Josephson junctions, revealing that their resistance evolution follows a logarithmic curve dependent on fabrication and storage conditions, while thermal annealing in nitrogen consistently lowers resistance compared to ambient conditions, though neither method can reduce resistance below its initial value.
This paper demonstrates a gate-switchable superconducting diode effect in lead nanoscale islands driven into the Coulomb blockade regime, where electron-electron interactions and electrostatic tuning break particle-hole symmetry to induce nonreciprocal Cooper-pair currents without requiring external magnetic fields or complex heterostructures.
Using ultrafast resonant X-ray scattering, researchers discovered that photo-excitation in YBaCuO selectively melts long-range charge density wave order while revealing persistent short-range correlations, thereby demonstrating a method to disentangle coexisting electronic orders based on their distinct fluence thresholds and recovery timescales.
Using scanning tunneling microscopy, researchers report the first experimental observation of a translational-symmetry-breaking Kondo hybridization wave on the surface of the heavy-fermion superconductor UTe2, revealing a new ordered phase that coexists with superconductivity and offers fresh insights into the material's unconventional pairing mechanism.
This study demonstrates that epitaxial La2.82Sr0.18Ni2O7 thin films exhibit intrinsic three-dimensional bulk superconductivity with a sharp transition at 31.6 K, where the in-plane upper critical field is significantly suppressed by spin-paramagnetic pair breaking near the Pauli limit, resulting in a reduced anisotropy ratio of approximately 1.34.
Using the density-matrix renormalization group method, this study demonstrates that Emery ladders preserving the Cu-to-O ratio transition from charge-transfer insulators to Luther-Emery liquids with enhanced pairing upon doping, successfully reproducing the relationships between charge distribution, pairing strength, and interactions observed in both two-dimensional models and experiments.
This paper employs a tight-binding lattice model to investigate the gap structure and phase diagram of twisted bilayer cuprates, revealing that the time-reversal symmetry breaking $d+id'$ state is correlated with the Van Hove singularity's position—which varies with doping and interlayer tunneling—and discussing how these findings reconcile conflicting experimental results.
This study demonstrates that while chiral molecular potentials in superconducting Josephson junctions have minimal impact on equilibrium charge supercurrents, they induce distinct, anisotropic spin-polarized supercurrents dependent on molecular handedness, thereby establishing spin-polarized Josephson interferometry as a sensitive platform for detecting molecular chirality and advancing superconducting spintronics.
This paper presents a computationally efficient framework for calculating the zero-temperature superfluid weight and magnetic penetration depth from first principles by separating conventional and quantum geometric contributions, thereby enabling large-scale screening of superconductors and validating the method against experimental data for conventional materials.