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 paper derives the pair susceptibility and analyzes the spectral functions of a superconductor mediated by nematic fluctuations, revealing that the presence of gapless Fermi surface arcs leads to a pair susceptibility and collective mode dispersion that are qualitatively distinct from those in conventional BCS superconductors.
This study demonstrates that Josephson scanning tunneling microscopy (JSTM) on kagome superconductors in the deep point-contact regime exhibits a deviation from quadratic zero-bias conductance dependence and a saturation effect caused by series resistance, providing critical insights for interpreting exotic physics and identifying an optimal regime for probing pair-density wave states.
This paper investigates the electronic phases of an effective Hubbard model on a body-centered-cubic lattice, motivated by alkali-doped fullerides, by employing complementary theoretical approaches in intermediate and strong coupling regimes to reveal first-order transitions between superconducting, antiferromagnetic, and Mott insulating states.
This paper analyzes thickness-dependent superconductivity in ultra-thin LaBi films under parallel magnetic fields using a multi-mechanism framework to resolve field-enhanced superconductivity, thereby quantifying the role of spin exchange scattering alongside paramagnetic and orbital effects to refine the interpretation of critical temperature, Pauli limits, and scattering times in two-dimensional superconductors.
This study reports the successful stabilization of bulk 1T-NbSe via electrochemical Sn intercalation, revealing a correlated insulating state that defies standard metallic predictions and establishes a new platform for investigating emergent electronic correlations.
This paper proposes that superconductivity in rhombohedral trilayer graphene arises from the pairing of quasiparticles in an adjacent intervalley coherent state, a mechanism that successfully explains the experimentally observed anomalously short coherence length and low transition temperature without requiring parameter fine-tuning, unlike conventional Bardeen-Cooper-Schrieffer theory.
By measuring magnetotropic susceptibility, researchers discovered giant transverse magnetic fluctuations near a field-induced metamagnetic critical point in UTe, suggesting these quantum critical fluctuations provide the pairing mechanism for its re-entrant superconductivity despite the absence of conventional ferromagnetic order.
This article derives the exact non-thermal asymptotic dynamics of a time-dependent Richardson-Gaudin model with spin and shows that cases with higher spin require a treatment independent of the spin- fusion, exhibit an exact mean-field description for local observables, and deviate from the standard generalized Gibbs ensembles.
This paper demonstrates reliable electrical transport measurements of superconducting NbN devices inside a transmission electron microscope at liquid helium temperatures by utilizing a cryogenically shielded sample holder, thereby enabling correlative structural and functional studies of quantum materials.
This study employs a large-scale numerical investigation of the one-dimensional Anderson lattice and its mapping onto a superconducting pairing layer coupled to a metallic reservoir to demonstrate that reservoir-mediated long-range interactions induce degenerate superconducting and density correlations that directly explain the emergence of nearly long-range magnetic order and a strong renormalization of the RKKY coupling in undoped Kondo systems.