834 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 reports the successful synthesis of bulk superconducting WBe2 at ambient pressure with a critical temperature of approximately 1.05 K, achieved by using a tungsten-rich composition to avoid contamination from known beryllium-rich superconducting phases.
This study utilizes density functional theory to demonstrate that compressive strain and interface reconstruction in LaNiO on SrLaAlO(001) induce an unconventional occupation of Ni states and strong spin fluctuations via Fermi surface nesting, offering a distinct mechanism for the observed ambient-pressure superconductivity compared to the hydrostatic pressure scenario.
This paper presents a numerical tight-binding calculation of the energy-phase relationship and bound state dynamics for Josephson junctions incorporating topological superconducting nanowires, aiming to inform the development of fault-tolerant qubits that mitigate decoherence in the NISQ era.
This paper establishes that macroscopic superconducting coherence in hybrid normal-superconducting devices governs deviations from standard thermodynamic uncertainty relations in the subgap regime, leading to the derivation of a generalized quantum uncertainty bound for the Andreev regime that remains universally valid.
This paper establishes a unified theoretical framework for synthesizing artificial transmission lines tailored for traveling-wave parametric processes by integrating periodic structure theory and passive network synthesis, thereby revealing fundamental design constraints and enabling novel TWPA architectures such as kinetic inductance and ambidextrous Josephson-based amplifiers.
This study presents the first direct visualization of flux avalanches in bulk NbTi superconductors, revealing that their propagation is governed by a thermally limited regime with significantly slower velocities (15–25 m/s) compared to thin films, driven by local heating and poor thermal coupling.
Motivated by recent STM observations of pair-density modulation (PDM) in FeTeSe flakes, this paper develops a Landau theory attributing the phenomenon to surface-induced glide symmetry breaking that stabilizes a hybridized order parameter, thereby suggesting local iron-site pairing driven by Hund's coupling and predicting a magnetic-field-induced reentrant triplet phase.
This paper introduces an advanced model for microwave SQUID multiplexers that accurately predicts resonance characteristics across the full range of screening parameters and accounts for Josephson junction inhomogeneities, significantly improving agreement with experimental data and enabling optimization beyond previously accessible operating regimes.
This paper demonstrates a direct, chemically simple method using Mg-induced surface reduction in molecular-beam epitaxy to fabricate a spectroscopically accessible, superconducting two-dimensional electron gas on KTaO3(111) that avoids obscuring overlayers and enables detailed investigation of its electronic structure and superconductivity.
This paper utilizes the sulfosalt Murunskite as a structural and electronic bridge to compare cuprates and pnictides, proposing that while cuprate superconductivity arises from the scattering of mobile oxygen holes by localized copper holes, a similar mechanism in pnictides involves a light Fermi liquid scattering off a slow, nearly-antiferromagnetic one.