🔬 Category

cond-mat.supr-con

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.

Extended Mean-Field Theory for the 2D Hubbard Model in Degenerate Dilute Electron Gases: Fluctuations, Superconducting Dome, and Interaction Mechanisms in Strontium Titanate

This paper presents an extended mean-field theory for the 2D Hubbard model in strontium titanate that successfully reproduces the experimental superconducting dome, elucidates the competition between charge-density-wave and superconducting orders, and provides criteria to distinguish electron-electron from electron-phonon interaction mechanisms in dilute electron gases.

Xing Yang, Xinyu Zhang, Xuchang Zhang2026-02-23🔬 cond-mat.mtrl-sci

Electron-phonon coupling revealed by charge density fluctuations in cuprate superconductors

Using resonant inelastic x-ray scattering, this study demonstrates that in cuprate superconductors, the strength of electron-phonon coupling is maximized near optimal doping (p≈0.19p \approx 0.19) due to dynamic charge-density fluctuations rather than static charge density waves, establishing a direct correlation between this coupling and the superconducting dome.

Martina Fedele, Giacomo Merzoni, Marco Moretti Sala, Francesco Rosa, Nicholas B. Brookes, Floriana Lombardi, Sergio Caprara, Giacomo Ghiringhelli, Riccardo Arpaia2026-02-23🔬 cond-mat

Mitigation of Magnetic Flux Trapping in Superconducting Electronics Using Moats

This paper demonstrates that while etched "moat" arrays, particularly high-aspect-ratio rectangular slits, effectively sequester magnetic flux in superconducting niobium films under shielded conditions, they cannot fully eliminate flux trapping in non-ideal materials, highlighting the necessity of optimizing both circuit geometry and material quality for superconducting electronics.

Rohan T. Kapur, Sergey K. Tolpygo, Alex Wynn, Pauli Kehayias, Adam A. Libson, Collin N. Muniz, Michael J. Gold, Justin L. Mallek, Danielle A. Braje, Jennifer M. Schloss2026-02-23🔬 physics.app-ph

Doping-induced evolution of the intrinsic hump and dip energies dependent on the sample fabrication conditions in Bi2_2Sr2_2CaCu2_2O8+δ_{8+δ}

This study demonstrates that the doping-dependent evolution of hump and dip energies in Bi2_2Sr2_2CaCu2_2O8+δ_{8+\delta} is highly sensitive to sample fabrication conditions, revealing that measurements taken under optimal ultra-high vacuum and low-temperature conditions reflect intrinsic bulk properties, whereas those obtained under deteriorated conditions are artifacts of degraded surface properties.

Tatsuya Honma2026-02-20🔬 cond-mat

Microscopic Investigation of rf Vortex Nucleation in Nb3Sn Films Using a Near-Field Magnetic Microwave Microscope

Using a near-field magnetic microwave microscope to measure third-harmonic responses, researchers compared rf vortex nucleation in two Nb3Sn films and found that while both exhibit defect-triggered nucleation below 7 K, the electrochemically plated film uniquely displays additional structures between 14 K and 16 K, highlighting how fabrication methods influence vortex penetration properties.

Chung-Yang Wang, Zeming Sun, Thomas Oseroff, Matthias U. Liepe, Steven M. Anlage2026-02-20🔬 cond-mat

Coexisting electronic smectic liquid crystal and superconductivity in a Si square-net semimetal

This study utilizes scanning tunneling microscopy and numerical calculations to reveal the coexistence of short-ranged charge stripe (smectic) order and superconductivity in the Si square-net semimetal NaAlSi, attributing the intertwined phases to kinetic energy suppression on specific p-orbital hole pockets of the Fermi surface.

Christopher J. Butler, Toshiya Ikenobe, Ming-Chun Jiang, Daigorou Hirai, Takahiro Yamada, Guang-Yu Guo, Ryotaro Arita, Tetsuo Hanaguri, Zenji Hiroi2026-02-20🔬 cond-mat.mtrl-sci

Deciphering Majorana Zero Modes in Topological Superconductor FeTe0.55Se0.45 with Machine-Learning-Assisted Spectral Deconvolution

This study introduces a machine-learning-assisted spectral deconvolution workflow to unambiguously distinguish genuine Majorana zero modes from trivial mimicking states in the topological superconductor FeTe0.55Se0.45 by clustering tunneling spectroscopy data and correlating zero-bias conductance peak distributions with local material heterogeneity.

Jewook Park, Hoyeon Jeon, Dongwon Shin, Guannan Zhang, Michael A McGuire, Brian C. Sales, An-Ping Li2026-02-20🔬 cond-mat

Uniaxial stress enhanced anisotropic magnetoresistance and superconductivity in the kagome superconductor LaRu3_{3}Si2_{2}

This study demonstrates that in-plane uniaxial stress enhances both the superconducting transition temperature and the anisotropic magnetoresistance in the kagome superconductor LaRu3_{3}Si2_{2} by modifying the density of states and shifting the Ru dz2dz^{2} flat band, suggesting a positive correlation between the material's superconducting and normal-state electronic properties.

P. Král, V. Sazgari, Yongheng Ge, O. Gerguri, M. Spitaler, J. N. Graham, H. Nakamura, M. Bartkowiak, S. Nakatsuji, H. Luetkens, G. Simutis, Gang Xu, Z. Guguchia2026-02-20🔬 cond-mat.mtrl-sci