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.

Magneto-Chiral Anisotropy in Josephson Diode Effect of All-Metallic Lateral Junctions with Interfacial Rashba Spin-Orbit Coupling

This study demonstrates that interfacial Rashba spin-orbit coupling in all-metallic Fe/Pt and Cu/Pt Josephson junctions induces a magneto-chiral anisotropic Josephson diode effect, distinguishing it from the axis-symmetric behavior observed in control samples with plain copper weak links.

Maximilian Mangold, Lorenz Bauriedl, Johanna Berger, Chang Yu-Cheng, Thomas N. G. Meier, Matthias Kronseder, Pertti Hakonen, Christian H. Back, Christoph Strunk, Dhavala Suri2026-04-29🔬 cond-mat

Uncovering Exotic Paired States in the 2D Spin-Imbalanced Fermi Gas with Neural Wave Functions

Using neural network variational Monte Carlo methods, this study maps the zero-temperature phase diagram of a 2D spin-imbalanced Fermi gas, revealing a rich landscape of exotic states including the Fulde-Ferrell-Larkin-Ovchinnikov phase, polarized superfluids, phase separation, and a unique crystalline phase of Cooper pairs embedded in a Fermi fluid.

Wan Tong Lou, Gino Cassella, Andres Perez Fadon, Halvard Sutterud, David Pfau, James S. Spencer, Johannes Knolle, W. M. C. Foulkes2026-04-29🔬 cond-mat

Nonlocal Cooper pairs in finite topological superconductors and their relation to Majorana nonlocality

This paper identifies that finite one-dimensional topological superconductors host unconventional nonlocal Cooper pairs in the low-energy regime, where normal and anomalous Green's functions become identical and exhibit exponentially growing correlations between system ends, thereby linking these pair correlations to fermion parity and the nonlocality of hybridized Majorana modes.

Hiroto Mizoguchi, Yutaro Nagae, Yasuhiro Asano, Satoshi Ikegaya2026-04-29🔬 cond-mat

High-field magneto-optical imaging of superconducting critical states beyond 10 T using a paramagnetic garnet sensor

This paper introduces a high-field magneto-optical imaging technique using a paramagnetic Nd-garnet sensor to visualize and quantitatively map the spatial distribution of critical current density and vector current flow in iron-based superconductors under steady magnetic fields up to 13 T, overcoming the limitations of conventional bulk-averaged measurements.

Yuto Kinoshita, Masayuki Toyoda, Yoshiaki Kobayashi, Masayuki Itoh, Masashi Tokunaga2026-04-29🔬 cond-mat

Topochemical Fluorination of La2_2NiO4+δ_{4+\delta} Single Crystals

This study demonstrates that topochemical fluorination of bulk La2_2NiO4+δ_{4+\delta} single crystals using various fluorinating agents successfully incorporates fluorine to induce a novel superstructure and modify magnetic ordering while preserving the Ruddlesden-Popper framework, offering unprecedented insights into intrinsic structure-property relationships unattainable in polycrystalline or thin-film samples.

Hasan Yilmaz, Masahiko Isobe, Oliver Clemens, Pascal Puphal2026-04-29🔬 cond-mat.mtrl-sci

Physical properties of transition metal hydride superconductors Mg2TmH6 (Tm = Rh, Pd, Ir, Pt) by first-principles calculations

This first-principles study reveals that Mg2TmH6 (Tm = Rh, Pd, Ir, Pt) hydrides exhibit a promising combination of favorable hydrogen storage capacity, mechanical robustness, superconductivity, and multifunctional optical properties, positioning them as strong candidates for advanced energy, superconducting, and optoelectronic applications.

Md Ashraful Alam, Md Abdul Hadi Shah, F. Parvin, S. H. Naqib2026-04-29🔬 cond-mat.mtrl-sci

Bragg-Williams order competes with superconductivity

This study demonstrates that Bragg-Williams order acts as an independent competing order parameter that suppresses superconductivity in In2/3PSe3, where the disordered phase exhibits a significantly higher critical temperature (11 K) than the ordered phase (7 K) due to enhanced electron-phonon interactions.

Xu Liu, Xu Chen, Chuizhen Chen, Boqin Song, Jing Chen, Xijing Dai, Qinghua Zhang, Feng Jin, Xingya Wang, Weiwei Dong, Dongliang Yang, Gefei Li, Pengju Zhang, Jiangping Hu, Jian-gang Guo, Tianping Ying (…)2026-04-29🔬 cond-mat.mtrl-sci

Thermodynamic Identification of the Internal Superconducting Phase Boundary in UTe2_2 for HbH \parallel b

This study provides the first thermodynamic evidence for an internal superconducting phase boundary in UTe2_2 under a magnetic field parallel to the bb-axis by identifying a pronounced anomaly in the C33C_{33} ultrasound mode, thereby confirming a four-phase diagram with a tetracritical point and supporting the existence of field-induced multicomponent superconductivity.

Michal Vališka, Tetiana Haidamak, Andrej Cabala, Petr Proschek, Andreas Hausprug, Sergei Zherlitsyn, Vladimír Sechovský2026-04-29🔬 cond-mat