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 study demonstrates that bulk single crystals of the triplet superconductor uranium ditelluride (UTe) exhibit an intrinsic, electrically controllable memory effect where magnetic-field-tuned current pulses switch the material between metastable states of distinct critical currents, offering a promising pathway for ultralow-power superconducting memory in cryogenic computing.
By utilizing focused-ion-beam milling to expose pristine (110) side surfaces of overdoped LaSrCuO, this study reveals that while the superconducting spectral gap is suppressed as expected, the anticipated zero-energy flat bands are also absent due to bulk disorder rather than surface roughness, providing the first momentum-resolved evidence that disorder prevents the emergence of these topological states and their associated correlated orders.
This study demonstrates that a Pechini sol-gel synthesis method with cationic molecular mixing can efficiently produce high-quality Li-doped Bi-2223 superconductors, achieving a maximum critical temperature of 111.4 K at 5 mol% Li doping while revealing unique layer-by-layer crystalline growth and flux creep mechanisms.
Using ultrafast coherent phonon spectroscopy, this study reveals that robust charge density wave fluctuations persist well beyond the long-range order phase boundary in hole-doped CsVSbSn, peaking near a quantum phase transition that coincides with a local minimum in superconductivity, suggesting these fluctuations play a central role in the material's electronic phase diagram.
This paper contrasts the conventional emergent explanation of the Meissner effect with a reductionist alternative proposing radial charge motion to resolve momentum conservation issues, arguing that resolving this debate is critical for understanding superconductivity mechanisms and discovering higher-temperature materials.
This study utilizes Scanning Tunneling Microscopy to characterize nitridized aluminum thin films, revealing a spatially homogeneous superconducting gap larger than that of pure aluminum and demonstrating STM's effectiveness as a screening tool for quantum device materials.
This paper proposes a unified paradigm for fabricating superconducting materials under near-ambient conditions using room-temperature liquid metals as dynamic, multifunctional media, offering a versatile, energy-efficient route to diverse superconducting forms while enabling new fundamental studies and data-driven design.
By fabricating nano-holes in infinite-layer nickelate superconductors to engineer Josephson junction arrays, this study demonstrates that enhanced phase fluctuations drive a two-stage transition to an anomalous metallic state and reveal hidden intertwined orders, including charge-2e coherence and a reversal of superconducting anisotropy.
This study demonstrates that stoichiometry-controlled disorder in nanocrystalline NbxSn thin films significantly tunes superconducting properties by inducing thickness-dependent transitions from superconducting to insulating states and altering dimensionality, with Sn-rich compositions exhibiting enhanced sensitivity to disorder and earlier onset of localization compared to stoichiometric films.
This study demonstrates that multichannel Rashba nanowires with both harmonic and rectangular confinement exhibit robust superconducting diode effects with efficiencies up to ~60%, driven by asymmetric Fulde-Ferrell states that enable high-efficiency nonreciprocal transport and allow for direct topological manipulation of Majorana zero modes via externally injected supercurrents.