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.

Superconducting Dome in La3xSrxNi2O7δ\mathrm{La}_{3-x}\mathrm{Sr}_{x}\mathrm{Ni}_{2}\mathrm{O}_{7-δ} Thin Films

This paper maps the phase diagram of compressively strained La3xSrxNi2O7δ\mathrm{La}_{3-x}\mathrm{Sr}_{x}\mathrm{Ni}_{2}\mathrm{O}_{7-\delta} thin films, revealing a superconducting dome characterized by an electron-hole crossover and an anomalous Hall coefficient sign change that suggests Fermi surface reconstruction.

Maosen Wang, Bo Hao, Wenjie Sun, Shengjun Yan, Shengwang Sun, Hongyi Zhang, Zhengbin Gu, Yuefeng Nie2026-02-11🔬 cond-mat.mtrl-sci

Optical conductivity signatures of strong correlations and multiband superconductivity in infinite-layer nickelates

By analyzing the optical conductivity of Nd1xSrxNiO2Nd_{1-x}Sr_xNiO_2 thin films, this study demonstrates that infinite-layer nickelates exhibit a multiband electronic structure characterized by strongly correlated hole bands and electron bands, both of which contribute to the superconducting condensate.

Woo Jin Kim, Kyuho Lee, Eun Kyo Ko, Jaeseok Son, Yonghun Lee, Yijun Yu, Soon Jae Moon, Tae Won Noh, Harold Y. Hwang2026-02-11🔬 cond-mat

Magneto-optical study of Nb thin films for superconducting qubits

This paper uses quantitative magneto-optical imaging to characterize magnetic-flux distribution and critical current density in niobium thin films, demonstrating that the Nb/Si interfacial layer significantly impacts superconducting homogeneity and contributes to decoherence in transmon qubits.

Amlan Datta, Kamal R. Joshi, Sunil Ghimire, Makariy A. Tanatar, Cameron J. Kopas, Jayss Marshall, Josh Y. Mutus, David P. Pappas, Matthew J. Kramer, Ruslan Prozorov2026-02-11🔬 cond-mat