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.

Limits of Thermal Conductance Quantization in Chiral Topological Josephson Junctions

This study investigates thermal and non-local electrical transport in four-terminal chiral topological Josephson junctions, establishing that robust half-quantized thermal conductance serves as a reliable probe for single chiral Majorana modes only under specific low-doping, intermediate-to-long junction conditions, while higher Chern numbers and finite-size effects generally disrupt quantization.

Daniel Gresta, Fernando Dominguez, Raffael L. Klees, Florian Goth, Laurens W. Molenkamp, Ewelina M. Hankiewicz2026-02-16🔬 cond-mat.mes-hall

Sondheimer magneto-oscillations as a probe of Fermi surface reconstruction in underdoped cuprates

This paper proposes Sondheimer magneto-oscillations as a robust, semiclassical alternative to conventional quantum oscillations for probing Fermi surface reconstruction in underdoped cuprates at elevated temperatures, demonstrating that their distinct spectral features and phase shifts can effectively differentiate between unreconstructed, spin-density-wave, and fractionalized Fermi liquid scenarios.

Alexander Nikolaenko, Carsten Putzke, Philip J. W. Moll, Subir Sachdev, Pavel A. Nosov2026-02-13🔬 cond-mat.mes-hall

Enhanced and Tunable Superconductivity Enabled by Mechanically Stable Halogen-Functionalized Mo2C MXenes

This study demonstrates that mechanically stable, bromine- and iodine-functionalized Mo2C MXene monolayers exhibit significantly enhanced and tunable phonon-mediated superconductivity, with transition temperatures reaching up to 21.7 K under electron doping, driven by strong electron-phonon coupling facilitated by halogen functionalization.

Jakkapat Seeyangnok, Udomsilp Pinsook2026-02-13🔬 cond-mat

Microscopic theory for electron-phonon coupling in twisted bilayer graphene

This paper presents a first-principles-based microscopic theory that calculates electron-phonon coupling in twisted bilayer graphene for arbitrary twist angles without periodic supercells, revealing that the coupling is strongly enhanced near the magic angle due to a resonance between electronic bandwidth and phonon frequencies, thereby predicting superconductivity up to 1.4\sim 1.4^\circ.

Ziyan Zhu, Thomas P. Devereaux2026-02-12🔬 cond-mat.mes-hall

Influence of Fermi Surface Geometry and Van Hove Singularities on the Optical Response of Sr2_2RuO4_4

This study utilizes a three-orbital model to demonstrate how Fermi surface geometry, Van Hove singularities, and inter-orbital charge transfer in Sr2_2RuO4_4 critically influence optical Hall response and the polar Kerr effect, identifying specific pairing symmetries and Lifshitz transitions as key drivers of these phenomena.

Meghdad Yazdani-Hamid, Mehdi Biderang, Alireza Akbari2026-02-12🔬 cond-mat