🔬 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.

Unveiling the superconducting scenario in multiphase superconductor CeRh2_2As2_2 from space-group symmetry analysis and DFT calculations

This paper investigates the unique superconducting scenario in CeRh2_2As2_2 by combining space-group symmetry analysis and DFT calculations to propose that the observed field-induced transition between low- and high-field phases arises from a change in the internal structure of triplet pairing states (E1u′+E_{1u}^{\prime +}) rather than a conventional singlet-triplet transition, potentially driven by non-symmorphic lattice effects at the Brillouin zone boundary.

V. G. Yarzhemsky, E. A. Teplyakov, S. V. Eremeev, E. V. Chulkov2026-03-02🔬 cond-mat

Reply to "Threefold error in the reported zero-field cooled magnetic moment of single crystal La2SmNi2O7La_2SmNi_2O_7 (arXiv: 2602.23240)"

This paper refutes Korolev and Talantsev's critique of the superconducting phase fraction calculations in Li et al. (2026) by demonstrating that their underestimation of the fraction stems from incorrectly treating the demagnetization field as a constant rather than accounting for its dependence on the measured magnetic moment, while also confirming the absence of paramagnetic Meissner effects and the homogeneity of the single-crystal sample.

Feiyu Li, Zhenfang Xing, Di Peng, Jie Dou, Ning Guo, Liang Ma, Yulin Zhang, Lingzhen Wang, Jun Luo, Jie Yang, Jian Zhang, Tieyan Chang, Yu-Sheng Chen, Weizhao Cai, Jinguang Cheng, Yuzhu Wang, Yuxin Li (…)2026-03-02🔬 cond-mat.mtrl-sci

Superconductivity in the A15-type V3(Os1-2xSixGex) medium-entropy alloys

This study reports the successful synthesis and characterization of a new series of A15-type V3(Os1-2xSixGex) medium-entropy alloys, which exhibit type-II bulk superconductivity with transition temperatures that increase as osmium concentration decreases and demonstrate robustness against magnetic fields exceeding the Pauli limit.

Yucheng Li, Kuan Li, Lingyong Zeng, Rui Chen, Jingjun Qin, Shuangyue Wang, Huixia Luo2026-03-02🔬 cond-mat.mtrl-sci

Highly-linear flux-to-voltage transducer based on superconducting quantum interference proximity transistors

This paper presents the experimental demonstration of a highly linear bi-SQUIPT flux transducer that utilizes a dual-loop architecture to cancel non-linearities, achieving a 60 dB spurious-free dynamic range and femtowatt power dissipation while operating stably up to 600 mK for scalable cryogenic quantum electronics.

Angelo Greco, Giorgio De Simoni, Francesco Giazotto2026-03-02⚛️ quant-ph

A Kapitza Pendulum Route to Supercurrent Tunnel Diodes

This paper proposes and theoretically demonstrates a "Kapitza supercurrent diode" that achieves nonreciprocal supercurrent transport in conventional Josephson junctions by using frequency-modulated parametric driving to dynamically break reciprocity, offering a magnet-free alternative to existing superconducting diode designs.

Yuriy Yerin, Stefan-Ludwig Drechsler, A. A. Varlamov, Francesco Giazotto, Jeroen van den Brink, Mario Cuoco2026-03-02🌀 nlin

Giant and robust Josephson diode effect in multiband topological nanowires

This paper theoretically predicts a giant and robust Josephson diode effect in multiband topological nanowires, arising from the interplay between Majorana and conventional Andreev bound states and a novel spin parity exchange mechanism, thereby offering a practical pathway for optimizing diode performance and identifying topological phases.

Bao-Zong Wang, Zi-Kai Li, Zhong-Da Li, Xiong-Jun Liu2026-02-27🔬 cond-mat.mtrl-sci

Berezinskii-Kosterlitz-Thouless quantum transition in 2 dimensions

This paper extends the concept of the Berezinskii-Kosterlitz-Thouless transition to zero-temperature quantum systems in two dimensions, demonstrating that a quantum BKT phase transition driven by a coupling constant can occur in effective gauge field theories with a diverging dielectric constant, specifically induced by non-relativistic magnetic monopoles (electric vortices) in compact U(1) gauge theory.

M. C. Diamantini, C. A. Trugenberger, V. M. Vinokur2026-02-27⚛️ hep-th

Microwave surface resistance of Tl-1223 films in a dc magnetic field

This paper reports preliminary microwave surface resistance measurements of laser-ablated Tl-1223 films under high dc magnetic fields and varying temperatures, demonstrating significant improvements in high-frequency transport properties through optimized oxygen partial pressure during heat treatment for potential Future Circular Collider applications.

Alessandro Magalotti, Andrea Alimenti, Emilio Bellingeri, Cristina Bernini, Sergio Calatroni, Alessandro Leveratto, Enrico Silva, Kostiantyn Torokhtii, Ruggero Vaglio, Pablo Vidal García, Nicola Pompe (…)2026-02-27🔬 cond-mat

Building 3D superconductor-based Josephson junctions using a via transfer approach

This paper presents a gentle, lithography-free via transfer method to construct high-quality 3D superconductor-graphene Josephson junctions with low contact resistance, enabling the observation of gate-tunable supercurrents and providing a pathway for engineering novel superconducting heterostructures on sensitive materials.

Cequn Li, Le Yi, Kalana D. Halanayake, Jessica L. Thompson, Yingdong Guan, Kenji Watanabe, Takashi Taniguchi, Zhiqiang Mao, Danielle Reifsnyder Hickey, Morteza Kayyalha, Jun Zhu2026-02-27🔬 cond-mat.mes-hall