cond-mat.supr-con 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.

Pressure-induced reentrant superconductivity in a misfit layered compound $\mathrm{(SnS)_{1.15}(TaS_2)}$

This study reveals that the misfit layered compound $\mathrm{(SnS)_{1.15}(TaS_2)}$ exhibits pressure-induced reentrant superconductivity above 80 GPa following the suppression of its low-pressure phase, a phenomenon driven by electronic reconstruction rather than structural phase transitions.

Chutong Zhang, Jiajia Feng, Xiao Tang, Xiangzhuo Xing, Na Zuo, Xiaolei Yi, Yan Meng, Xiaoran Zhang, Rajesh Kumar Ulaganathan, Raman Sankar, Xiaofeng Xu, Xin Chen, Xiaobing Liu2026-02-27🔬 cond-mat.mtrl-sci

Threefold error in the reported zero-field cooled magnetic moment of single crystal $La_2SmNi_2O_7$

This paper identifies and corrects a threefold calculation error in the reported superconducting phase fractions of the pressurized single crystal $La_2SmNi_2O_7$ by Li et al., aiming to clarify the quantitative analysis of bulk superconductivity in nickelates while affirming the validity of the underlying experimental observations.

Aleksandr V. Korolev, Evgeny F. Talantsev2026-02-27🔬 cond-mat

Temporal evolution of electric transport properties of YBCO Josephson junctions produced by focused Helium ion beam irradiation

This study demonstrates that focused Helium ion beam irradiation of YBCO thin films creates Josephson junctions whose electric transport properties exhibit time-dependent relaxation that can be significantly stabilized and accelerated toward a quasi-stable state through post-annealing in high oxygen pressure.

M. Karrer, K. Wurster, J. Linek, M. Meichsner, R. Kleiner, E. Goldobin, D. Koelle2026-02-26🔬 cond-mat

Dynamics of Topological Defects in Type-II Superconductors under Gradients of Temperature/Spin Density

This paper theoretically investigates how inhomogeneities in temperature or spin density drive the motion of domain walls and vortices in type-II superconductors, demonstrating that these topological defects move toward regions of suppressed order parameter to minimize condensation energy loss.

Takuma Kanakubo, Hiroto Adachi, Masanori Ichioka, Yusuke Kato2026-02-26🔬 cond-mat

Nonequilibrium plasmon liquid in a Josephson junction chain

This paper demonstrates the emergence of a strongly interacting, nonequilibrium liquid of plasmons in a Josephson junction chain by using multimode spectroscopy to reveal how strong driving transforms weak pairwise mode couplings into high-order cascaded interactions that redistribute energy non-locally across hundreds of modes.

Anton V. Bubis, Lucia Vigliotti, Maksym Serbyn, Andrew P. Higginbotham2026-02-26⚛️ quant-ph

Non-monotonic dependence of $T_c$ on the c axis compression in the HTSC cuprate La $_{2-x}$ Sr $_x$ CuO $_4$

This study investigates the non-monotonic dependence of the critical temperature ( $T_c$ ) on $c$ -axis compression in La $_{2-x}$ Sr $_x$ CuO $_4$ by demonstrating that the competition between a compression-induced increase in the density of states near the Fermi level (enhancing $T_c$ in underdoped regions) and the renormalization of pairing constants (reducing $T_c$ ) governs the superconducting properties near optimal doping.

I. A. Makarov, S. G. Ovchinnikov2026-02-26🔬 cond-mat

Light-induced Floquet spin-triplet Cooper pairs in unconventional magnets

This study demonstrates that time-periodic light drives, when applied to unconventional magnets with inherent momentum-dependent spin splitting, induce the formation of Floquet spin-triplet Cooper pairs and spin-triplet densities through photon-assisted processes, thereby enabling the dynamic creation and manipulation of nontrivial light-induced superconducting states.

Pei-Hao Fu, Sayan Mondal, Jun-Feng Liu, Jorge Cayao2026-02-26🔬 cond-mat.mes-hall

Enhancement of Josephson Supercurrent in a $π$ -Junction state by Chiral Antiferromagnetism

This paper demonstrates that chiral antiferromagnetism on kagome lattices can significantly enhance Josephson supercurrents by inducing dominant equal-spin triplet pairing and stabilizing a $\pi$ -junction state, offering a new mechanism to explain large currents in materials like Mn $_3$ Ge.

Jin-Xing Hou, Hai-Peng Sun, Björn Trauzettel, Song-Bo Zhang2026-02-26🔬 cond-mat

Gapless superconductivity from extremely dilute magnetic disorder in 2H-NbSe2-xSx

This study reveals that extremely dilute magnetic disorder induces gapless superconductivity in 2H-NbSe2-xSx, a phenomenon driven by Se-S substitution-induced band structure modifications that alter in-gap scattering mechanisms and challenge the conventional understanding of disorder robustness in superconductors.

Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas-Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio C (…)2026-02-26🔬 cond-mat.mtrl-sci

Prediction of several Co-based La $_3$ Ni $_2$ O $_7$ -like superconducting materials

This paper predicts that electron-doped Co-based analogs of the high-pressure bilayer nickelate La $_3$ Ni $_2$ O $_7$ , specifically LaTh $_2$ Co $_2$ O $_7$ , La $_3$ Ni $_2$ O $_5$ Cl $_2$ , and La $_3$ Ni $_2$ O $_5$ Br $_2$ , exhibit strongly correlated electronic states with $s$ -wave superconductivity as the leading pairing symmetry.

Jing-Xuan Wang, Yi-Heng Tian, Jian-Hong She, Rong-Qiang He, Zhong-Yi Lu2026-02-26🔬 cond-mat

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cond-mat.supr-con

Pressure-induced reentrant superconductivity in a misfit layered compound (SnS)1.15(TaS2)\mathrm{(SnS)_{1.15}(TaS_2)}(SnS)1.15​(TaS2​)

Threefold error in the reported zero-field cooled magnetic moment of single crystal La2SmNi2O7La_2SmNi_2O_7La2​SmNi2​O7​