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.

Intertwined Charge and Spin Density Waves in Trilayer Nickelate La $_4$ Ni $_3$ O $_{10}$ Revealed by $^{139}$ La NQR

Using $^{139}$ La NQR, this study reveals that La $_4$ Ni $_3$ O $_{10}$ undergoes a first-order-like phase transition at approximately 133 K driven by an intricate interplay between incommensurate charge and spin density waves, providing critical microscopic insights into the relationship between density wave orders and superconductivity in nickelates.

Jie Dou, Feiyu Li, Mingxin Zhang, Jun Luo, Shuo Li, Aifang Fang, Jie Yang, Yanpeng Qi, Junjie Zhang, Rui Zhou2026-01-27🔬 cond-mat

Wave functions for the regular pentagonal two-dimensional quantum box and thin microstrip antenna

This paper derives the general wave functions for two-dimensional regular pentagonal quantum boxes and thin microstrip antennas, characterizing their unique quantum numbers and presenting visualizations of the resulting wave functions for specific allowed values.

Tristan Langhorne, Erik E. Domenech, Juan Oliveros Gonzalez, Richard A. Klemm2026-01-27🔬 cond-mat

Direct observation of vortex liquid droplets in the iron pnictide superconductor CaKAs $_4$ Fe $_4$ at $0.5T$ _c$

Using scanning tunneling microscopy, researchers observed localized vortex liquid droplets in the iron pnictide superconductor CaKAs $_4$ Fe $_4$ at temperatures as low as 0.5 $T_c$ , revealing that the onset of local dissipation occurs considerably below the critical temperature where macroscopic melting transitions are typically detected.

Oscar Bou Marqués, Jose A. Moreno, Pablo García Talavera, Mingyu Xu, Juan Schmidt, Sergey L. Bud'ko, Paul C. Canfield, Isabel Guillamón, Edwin Herrera, Hermann Suderow2026-01-27🔬 cond-mat.mtrl-sci

Exotic vortex states at high magnetic fields in a quasi-two-dimensional FeSe-based superconductor

Through comprehensive high-field transport measurements up to 33 T, this study reveals that the quasi-two-dimensional FeSe-based superconductor (TBA+)xFeSe exhibits exotic vortex states, including fragile superconductivity and a unique intermediate regime with finite longitudinal but vanishing Hall resistance, driven by the interplay of strong electronic correlations, thermal fluctuations, and high magnetic fields.

Xuyang Li, Jian Li, Kai Liu, Jiaqiang Cai, Shunjiao Li, Baolei Kang, Mengzhu Shi, Dan Zhao, Chuanying Xi, Jinglei Zhang, Tao Wu, Xianhui Chen2026-01-27🔬 cond-mat

Conductance switching and nonequilibrium phase coexistence in superconductors with intermediate bias

This study demonstrates that voltage-biased three-dimensional superconducting films exhibit negative differential conductance and nonequilibrium phase coexistence with intermediate resistances, revealing dissipative states and validating the principle of minimum entropy production that remain inaccessible through conventional current-biasing methods.

Shamashis Sengupta2026-01-27🔬 cond-mat.mes-hall

Giant Resonant Enhancement of Photoinduced Dynamical Cooper Pairing, far above $T_c$

Inspired by recent experiments on $\mathrm{K}_3\mathrm{C}_{60}$ , this paper proposes a mechanism within a non-linear Holstein model where resonantly driving optical Raman modes modulates the electron-phonon coupling to induce Floquet-BCS instabilities, thereby explaining the giant resonant enhancement of light-induced superconductivity far above the equilibrium critical temperature.

Sambuddha Chattopadhyay, Marios Michael, Andrea Cavalleri, Eugene Demler2026-01-27🔬 physics.optics

Orbital Ordering in the Charge Density Wave Phases of BaNi $_2$ (As $_{1-x}$ P $_x$ ) $_2$

Using resonant X-ray scattering, this study reveals that both incommensurate and commensurate charge density waves in BaNi $_2$ (As $_{1-x}$ P $_x$ ) $_2$ are driven by orbital ordering of Ni $d_{xz,yz}$ orbitals, which lowers the local site symmetry and suggests a shared formation mechanism for these phases.

Tom Lacmann, Robert Eder, Igor Vinograd, Michael Merz, Mehdi Frachet, Philippa Helen McGuinness, Kurt Kummer, Enrico Schierle, Amir-Abbas Haghighirad, Sofia-Michaela Souliou, Matthieu Le Tacon2026-01-26🔬 cond-mat

Freestanding Thin-Film Materials

This review comprehensively examines the fabrication, unique mechanical and physical properties, and diverse applications of freestanding thin-film materials while addressing current challenges and outlining future prospects in fields ranging from flexible electronics to quantum sensing.

Li Liu, Peixin Qin, Guojian Zhao, Zhiyuan Duan, Jingyu Li, Sixu Jiang, Xiaoyang Tan, Xiaoning Wang, Ziang Meng, Zhiqi Liu2026-01-26🔬 physics.app-ph

Pressure-induced superconductivity in topological insulator Ge2Bi2Te5 and the evolution with Mn doping

This study demonstrates that high pressure induces superconductivity in the topological insulator Ge2Bi2Te5, while Mn doping introduces antiferromagnetism that competes with and suppresses this superconducting state, offering a new platform to explore the interplay between band topology, magnetism, and superconductivity.

Shangjie Tian, Qi Wang, Yuqing Cao, Ying Ma, Xiao Zhang, Yanpeng Qi, Hechang Lei, Shouguo Wang2026-01-26🔬 cond-mat

Superconducting density of states and vortex lattice of LaRu $_2$ P $_2$ observed by Scanning Tunneling Spectroscopy

Using millikelvin Scanning Tunneling Microscopy, this study characterizes LaRu $_2$ P $_2$ as a conventional s-wave superconductor with a single BCS-like gap and a coherence length of 50 nm, while observing broadened Caroli-de Gennes-Matricon states within its vortex cores.

Marta Fernández-Lomana, Paula Obladen Aguilera, Beilun Wu, Edwin Herrera, Hermann Suderow, Isabel Guillamón2026-01-26🔬 cond-mat

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cond-mat.supr-con

Intertwined Charge and Spin Density Waves in Trilayer Nickelate La4_44​Ni3_33​O10_{10}10​ Revealed by 139^{139}139La NQR