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.

Evolution of charge correlations in the hole-doped kagome superconductor CsV3x_{3-x}Tix_xSb5_5

This study reveals that while hole doping via Ti substitution in CsV3x_{3-x}Tix_xSb5_5 preserves conventional superconductivity across two distinct domes, it fundamentally alters charge correlations by rapidly suppressing competing 2×2×22\times 2 \times 2 and 2×2×42\times 2 \times 4 superstructures in the first dome and eliminating detectable charge order entirely in the second, highlighting key differences from Sn doping on Sb sites.

Ganesh Pokharel, Canxun Zhang, Evgeny Redekop, Brenden R. Ortiz, Andrea N. Capa Salinas, Sarah Schwarz, Steven J. Gomez Alvarado, Suchismita Sarker, Andrea F. Young, Stephen D. Wilson2026-04-06🔬 cond-mat

Emergent Network of Josephson Junctions in a Kagome Superconductor

This study reveals that critical current oscillations in unstructured CsV3Sb5 flakes arise from an emergent, intrinsic network of Josephson junctions characterized by quantized Shapiro steps and filamentary supercurrent flow, offering new insights into the superconducting nature of the AV3Sb5 family.

Tycho J. Blom, Matthijs Rog, Marieke Altena, Andrea Capa Salinas, Stephen D. Wilson, Milan P. Allan, Chuan Li, Kaveh Lahabi2026-04-06🔬 cond-mat

Comparison of Two-Level System Microwave Losses in Pure Bulk Microcrystalline Nb2O5 and NbO2 Oxide Samples

This study utilizes a superconducting 3D microwave cavity to demonstrate that bulk microcrystalline Nb2O5 exhibits significant two-level system (TLS) losses consistent with theoretical models, whereas NbO2 shows no detectable TLS signatures, suggesting that engineering niobium cavities to favor an NbO2-dominated oxide layer could substantially reduce microwave losses in superconducting quantum devices.

Vishal Ganesan, Jiankun Zhang, Drew G. Wild, Alexey Bezryadin2026-04-06🔬 cond-mat

Superconductivity and fractionalized magnetic excitations in CeCoIn5

Through high-precision inelastic neutron scattering and theoretical modeling, this study demonstrates that a Kondo-lattice framework incorporating fractionalized Fermi liquid (FL*) physics successfully explains the spin resonance and excitation continuum in CeCoIn5, thereby unifying spin fractionalization and unconventional d-wave superconductivity via common underlying gauge dynamics.

Pyeongjae Park, Shang-Shun Zhang, Pietro M. Bonetti, Andrey A. Podlesnyak, Daniel M. Pajerowski, Matthew B. Stone, C. Petrovic, C. Stock, Subir Sachdev, Cristian D. Batista, Andrew D. Christianson2026-04-06🔬 cond-mat

High-energy electronic excitations in La3Ni2O7 by time-resolved optical spectroscopy

This study employs time-resolved optical spectroscopy to characterize the ultrafast dynamics of high-energy electronic excitations and phonon modes in bilayer La3Ni2O7, revealing distinct density-wave gaps, relaxation behaviors, and electron-phonon coupling mechanisms that provide critical insights into the material's complex gap structure and its link to high-temperature superconductivity.

Junzhi Zhu, Mengwu Huo, Yubin Wang, Yuxin Zhai, Lili Hu, Haiyun Huang, Xiu Zhang, Baixu Xiang, Mengdi Zhang, Yusong Gan, Zhiyuan An, Meng Wang, Qihua Xiong, Haiyun Liu2026-04-06🔬 cond-mat

Electron affinity difference distributions guide the discovery of the superconductor PtPb3_3Bi

This paper introduces an interpretable Gaussian process model called GP-TcT_c, which utilizes electron-affinity difference distributions to predict superconducting transition temperatures, successfully validating its approach on nickelates and experimentally discovering a new superconductor, PtPb3_3Bi, with a critical temperature of approximately 3 K.

Omri Lesser, Yanjun Liu, Natalie Maus, Aaditya Panigrahi, Krishnanand Mallayya, Albert Gong, Anmol Kabra, Scott B. Lee, Sudipta Chatterjee, Amira Merino, Kilian Q. Weinberger, Leslie M. Schoop, Jacob (…)2026-04-03🔬 cond-mat.mtrl-sci