833 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.
Using finite-temperature tensor network simulations on the -- model, this study reveals that superconductivity in underdoped cuprates evolves from pairing correlations localized on intermediate-temperature hole clusters to a coherent, system-wide state in the ground-state stripe phase, providing a microscopic explanation for experimental observations of local pairing above and charge clustering.
This paper demonstrates that incorporating an electroluminescent GaP inhomogeneous phase into MgB2 enables optically activated superconductivity, where in situ light emission enhances the electron-phonon coupling to raise the critical temperature by ~1.4 K while simultaneously improving the critical current density by ~69% through structural pinning.
This paper reports the fabrication and successful integration of scalable, oxide-free Nb/NbN and Nb/TiN multilayer nanobridge Josephson junctions into dc SQUIDs, utilizing a geometrically defined weak link to engineer superconducting properties without relying on focused ion beam milling or tunnel barriers.
Muon-spin rotation measurements on PrNiO reveal that the oxygen-isotope effect on the spin-density wave transition remains invariant under hydrostatic pressure, providing evidence that the intertwined order in this trilayer nickelate is predominantly driven by electronic interactions rather than electron-phonon coupling.
This paper utilizes Density Functional Theory to reveal that a hopping mechanism, evidenced by the asymmetry of cosine-shaped bands in MgB2 and other superconductors, is fundamentally linked to electron-hole pairing, Fermi surface nesting, and the superconducting gap.
This study reports the successful growth of atomically flat, hexagonal FeTe islands on SrTiO3 substrates, where scanning tunneling spectroscopy reveals a gap-filling temperature near 40 K that suggests the potential for superconductivity in iron telluride at ambient pressure.
This study utilizes a newly developed amplifier for shot-noise scanning tunneling microscopy to demonstrate that systematically increasing junction transparency on Pb(111) drives the transition from single-electron tunneling to multiple charge transfer via Andreev reflections, thereby establishing noise-STM as a powerful platform for investigating microscopic charge transport mechanisms with atomic-scale control.
Muon-spin-rotation measurements of the thermodynamic critical field in elemental lead under hydrostatic pressure provide thermodynamic evidence for a pressure-driven crossover from strong- to weak-coupling superconductivity, as indicated by the convergence of the pressure derivatives of the critical field and transition temperature at higher pressures.
This study reports the fabrication of high-mobility SrTiO surface electron gases via hydrogen plasma exposure that exhibit suppressed superconductivity down to 10 mK and demonstrate unique electrostatic gating behaviors, including improved modulation with larger gate separations and stochastic pinch-off events at low densities, offering a promising epitaxy-free platform for quantum devices.
This paper presents simulations of a proposed device that achieves sub-nanosecond, single-shot readout of a fluxonium qubit by utilizing the transmission or reflection of a ballistic fluxon in a dual long Josephson junction circuit, offering a fast, microwave-free alternative to standard cQED methods with negligible backaction.