848 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 investigates topological Green's function zeros in interacting Floquet systems, specifically Kitaev-like chains in symmetry class BDI, by deriving new topological invariants that account for both bulk and edge zeros (which can exist even without interactions) and proposing a digital quantum emulator circuit to detect these boundary features.
This paper utilizes variational Monte Carlo simulations on the - model to reveal that doped Mott insulators form "cat states" where single holes resonate between quasiparticle and minimal loop-current components, while two holes automatically fuse into tightly bound pairs that resonate between incoherent and coherent channels, suggesting a robust mechanism for high-temperature superconductivity.
This paper proposes and numerically verifies that applying a perpendicular electric field of approximately 0.1–0.2 V to a single-bilayer LaNiO film at ambient pressure can drive liquid-nitrogen-temperature superconductivity by shifting electron filling to enhance intralayer -wave pairing.
This study presents the first detailed analysis of the upper critical field temperature dependencies in (Dy1-xErx)Rh3.8Ru0.2B4 compounds, revealing an anomalous inflection point in the x=0.2 sample potentially linked to magnetic ordering or a singlet-to-triplet transition, and demonstrating via WHH theory fitting that spin-paramagnetic effects significantly suppress superconductivity in these materials.
Using density functional theory and random phase approximation, this study reveals that superconductivity in pressurized LaNiO primarily originates from an -wave pairing mechanism within the bilayer subsystem, while the single-layer subsystem facilitates inter-bilayer coherence via weak Josephson coupling, collectively explaining the experimentally observed dome-shaped pressure dependence of the critical temperature.
Using the Gutzwiller approximation within the t-J model, this study reveals that [110] edges of d-wave superconducting slabs exhibit locally strengthened correlations and reduced hopping that draw quasiparticle charge toward the boundary, thereby weakening local superconductivity, suppressing zero-energy Andreev bound states, and preventing the formation of an extended s-wave component across a wide range of hole dopings.
This paper demonstrates that coupling chiral noncollinear antiferromagnets, such as MnGe and MnGa, with conventional superconductors induces pure spin-triplet superconductivity through a unique spin-valley locking mechanism driven by magnetic chirality, achieving a Zeeman-field-resilient state without requiring spin-orbit coupling or net magnetization.
This paper demonstrates that an even-parity spin texture in chiral non-collinear antiferromagnets induces a unique finite-momentum coexistence of opposite-spin singlet and equal-spin triplet pairing without requiring net magnetization or spin-orbit coupling, offering a tunable platform for exotic superconducting states and spintronic applications.
Using very low-temperature Scanning Tunneling Microscopy, this study confirms robust two-dimensional surface superconductivity with a critical temperature of 2.9 K and quantized vortices in the Weyl semimetal -PtBi, demonstrating macroscopic quantum phase coherence linked to its surface Fermi arcs.
This review presents a comprehensive Green's function-based formalism tailored for large-scale atomistic simulations to accurately compute both dc and ac supercurrents in Josephson junctions, serving as a reference for modeling these systems amidst the rise of novel quantum materials.