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 proposes a Josephson junction architecture combining a -wave magnet and an altermagnet barrier to achieve a robust, field-free Josephson diode effect without requiring Rashba spin-orbit coupling or distinct superconductors, thereby offering a promising platform for quantum circuit applications.
This study reports the high-pressure synthesis of intrinsic bulk rock-salt LaO, revealing a record-high type-II superconductivity transition temperature of 12.7 K at 20 GPa driven by enhanced La-5d/O-2p hybridization and unconventional pairing mechanisms, thereby resolving long-standing controversies about its ground state.
By integrating high-resolution X-ray diffraction, infrared spectroscopy, and ab initio calculations, this study reveals that the high-pressure superconducting phase of BaFe2Se3 adopts a non-centrosymmetric polar space group (P2_1), revising previous structural assignments and offering new insights into the interplay between lattice symmetry and unconventional superconductivity in iron-based materials.
This paper establishes a comprehensive microscopic framework to evaluate power attenuation in superconducting rectangular waveguides across the millimeter-wave to terahertz range, revealing that high-purity materials in the clean limit minimize linear losses while native oxide TLS effects dominate at ultra-low temperatures and strong excitation induces a distinct Higgs-mode dissipation peak near the superconducting gap frequency.
Using steady-state dynamical mean-field theory on the real-frequency axis, this study demonstrates that photodoping a Mott insulating Hubbard model induces a distinct form of high-temperature -pairing superconductivity, characterized by a high effective critical temperature and identifiable spectroscopic signatures in the spectral function and optical conductivity.
Researchers have reproducibly grown near-single-domain, atomically smooth superconducting aluminum films on GaAs(111)A substrates using molecular beam epitaxy, achieving record-low twin-domain ratios and exceptional crystalline quality that establish a promising platform for scalable, high-coherence quantum circuits.
This paper reviews the detection of orbital loop currents in various correlated electron materials via polarized neutron diffraction over the past two decades and presents an alternative theoretical description of the neutron magnetic cross-section based on microscopic inter-orbital currents rather than point-like local magnetic moments.
This paper employs a semiclassical approach to derive and verify the orbital magnetic moment of Bogoliubov quasiparticles, demonstrating that a nontrivial superconducting pairing gap alone cannot generate this moment and applying the resulting formula to analyze its effects on energy spectra, local density of states, and the orbital Nernst effect in chiral -wave superconductors.
Through self-consistent microscopic calculations, this study reveals that chiral $d+id$ superconductors on the kagome lattice host fractional vortices carrying one-third of the magnetic flux quantum, each uniquely associated with the lattice's three sublattice degrees of freedom, offering a theoretical explanation for recent experimental observations of time-reversal symmetry breaking in kagome metals.
This paper demonstrates that microwave radiation can enhance superconductivity in flat band systems, such as twisted bilayer graphene, by leveraging Bloch quantum geometry to overcome the suppression of quasiparticle excitations typically caused by low Fermi velocity.