828 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 demonstrates that applying hydrostatic pressure universally enhances the superconducting transition temperature of (La,Pr)3Ni2O7 thin films and suppresses resistance dips associated with oxygen vacancies, suggesting that pressure-induced electron delocalization at vacancy sites drives the observed Tc increase.
Using ultrafast two-dimensional electronic spectroscopy, researchers identified ubiquitous and strong coupling between electronic excitations and high-energy paramagnons in cuprate superconductors, overcoming previous limitations in disentangling overlapping bosonic modes and establishing a new framework for investigating strongly correlated quantum materials.
This paper reports the observation of Barkhausen-like switching-current jumps in an InAs/Al Josephson junction at millitesla fields, which serve as an interferometric probe revealing avalanche-like transitions between metastable local magnetic configurations that directly modulate the device's superconducting interference pattern.
This quantitative calorimetric study of UTe2 under pressure reveals a three-fold enhancement of electronic effective mass near the critical pressure and suggests that the high-pressure superconducting phase nucleates on only a fraction of the Fermi surface, likely driven by a quantum critical point associated with weak magnetic order rather than antiferromagnetism.
This paper argues that the equivalence principle fundamentally governs Yukawa couplings and prevents strong CP violation, thereby rendering the axion hypothesis unnecessary.
Using ultra-low temperature scanning tunneling microscopy and zero-bandwidth modeling, this study characterizes the quantum nature of Yu-Shiba-Rusinov excitations in high-spin manganese phthalocyanine molecules on a lead film under transverse magnetic fields, distinguishing between isolated and coupled spin systems to elucidate the roles of magnetic anisotropy and exchange interactions in their quantum phases.
This paper employs stationary-point analysis to establish a universal framework linking nonanalytic features in the response functions of anisotropic superconductors—such as linear scaling, step jumps, and logarithmic singularities—to the nodal and extremal points of the order parameter, while demonstrating how light-scattering anisotropy can modify these features into various power laws or eliminate singularities entirely.
By constructing Fe dimers and chains on 2H-NbSe using a scanning tunneling microscope, the study demonstrates that an odd-parity ground state in dilute Yu-Shiba-Rusinov systems serves as a precursor for topological superconductivity, while clarifying that observed spectral variations in the resulting bands arise from quantum spin effects and ferromagnetic coupling rather than Majorana modes.
This paper reports the discovery of emergent two-dimensional superconductivity and enhanced non-reciprocal transport phenomena, including a 29% efficient superconducting diode effect, at the molecular beam epitaxy-grown interface between the Dirac semimetal ZrTe and the antiferromagnet FeTe.
This study demonstrates that Fe adatoms on 2H-NbSe undergo spin quenching via -level hybridization to form stable non-magnetic dimers, resulting in distinct ground states for even and odd chains where odd chains host a switchable end-state magnetic atom, thereby highlighting the potential for engineering topological systems through controlled dimerization.