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.

Quantum critical behavior of cuprate superconductors observed by inelastic X-ray scattering

Using high-resolution resonant inelastic X-ray scattering, researchers uncovered conclusive evidence for a quantum critical point in La $_{2-x}$ Sr $_x$ CuO $_4$ cuprate superconductors by observing universal scaling of charge-charge correlations with a critical exponent consistent with O(4) symmetry, despite the point being buried beneath the superconducting dome.

H. Y. Huang, C. Y. Mou, A. Singh, J. S. Su, J. Okamoto, S. Komiya, C. T. Chen, T. K. Lee, A. Fujimori, D. J. Huang2026-02-27🔬 cond-mat

Superconductivity and magnetism in bilayer nickelates: itinerant perspective

This paper investigates superconductivity and magnetism in bilayer nickelates using an itinerant perspective with RPA-dressed interactions, revealing that the strength of Hund's coupling critically determines whether the system favors $s$ -wave pairing with $(\pi/2, \pi/2)$ spin-density wave order or $d$ -wave pairing with $(\pi, \pi)$ order.

Yi-Ming Wu, Tobias Helbig, Salahudin V. Smailagić, Hao-Xin Wang, Yijun Yu, Harold Y. Hwang, Srinivas Raghu2026-02-27🔬 cond-mat

Inhomogeneous superconductivity in (001), (110) and (111) KTaO $_3$ two-dimensional electronic gas: $T_c$ driven from electronic confinement

Using a self-consistent tight-binding slab model, this study reveals that the orientation-dependent superconducting critical temperature in KTaO $_3$ -based two-dimensional electron gases is primarily driven by variations in the spatial confinement of the electron gas and the resulting redistribution of the density of states, rather than changes in the pairing interaction.

Matta Trama, Roberta Citro, Carmine Antonio Perroni2026-02-27🔬 cond-mat.mes-hall

Enhancement of superconductivity by disorder in Remeika-type quasiskutterudites

This study demonstrates that controlled atomic-scale disorder in Remeika-type quasiskutterudites can enhance superconductivity by inducing locally superconducting regions with elevated critical temperatures, revealing a percolative transition mechanism governed by thermodynamic entropy.

Andrzej Ślebarski, Maciej M. Maśka2026-02-27🔬 cond-mat

Moire Engineering of Cooper-Pair Density Modulation States

This study demonstrates the engineering of Cooper-pair density modulation states in a Sb2Te3/FeTe bilayer heterostructure by utilizing a moiré superlattice formed between lattices of differing symmetries to spatially modulate superconducting gaps, with the ability to control these states' periodicity and magnitude through material substitution.

Zihao Wang, Bing Xia, Stephen Paolini, Zi-Jie Yan, Pu Xiao, Jiatao Song, Veer Gowda, Hongtao Rong, Di Xiao, Xiaodong Xu, Weida Wu, Ziqiang Wang, Cui-Zu Chang2026-02-27🔬 cond-mat.mtrl-sci

Emergence of chiral $p$ -wave and $d$ -wave states in $g$ -wave altermagnets

This study reveals that three-dimensional $g$ -wave altermagnetic metals, such as CrSb, can host emergent chiral $p$ -wave and $d$ -wave superconducting states depending on the strength of the altermagnetic field and electron density, offering a novel platform for realizing unconventional superconductivity.

Tilen Cadez, Abraham Nathan Sunanta, Kyoung-Min Kim2026-02-27🔬 cond-mat

Interaction and disorder effects on Cooper instability in two-dimensional fractional Dirac semimetals

Using renormalization group analysis, this study reveals that in two-dimensional fractional Dirac semimetals, the emergence of Cooper instability depends on a critical interaction threshold influenced by the fractional exponent and transfer momentum, while disorder types can either promote or suppress superconductivity by respectively lowering or raising this threshold and altering the available phase space.

Hua Zang, Jing Wang2026-02-27🔬 cond-mat.mes-hall

Magnetoresistance Oscillations in Few-Layer NbSe2 in Superconducting Fluctuation Regime

This study reports the observation of periodic magnetoresistance oscillations, superconducting interference patterns, and an interfering diode effect in unpatterned few-layer NbSe2 within the superconducting fluctuation regime, attributing these phenomena to thermally activated vortices traversing intrinsic supercurrent loops that result from the loss of global phase coherence.

Xiaolong Yin, Congzhe Cao, Yibin Feng, Kenji Watanabe, Takashi Taniguchi, Jiawei Mei, Qi-Kun Xue, Shuo-Ying Yang2026-02-27🔬 cond-mat.mes-hall

Hourglass Dirac chains enable intrinsic topological superconductivity in nonsymmorphic silicides

This study identifies \ch{TaPtSi} as a new intrinsic topological superconductor where nonsymmorphic symmetries generate hourglass Dirac chains that stabilize a time-reversal symmetry-breaking triplet pairing state supporting Majorana surface modes.

Shashank Srivastava, Dibyendu Samanta, Pavan Kumar Meena, Poulami Manna, Priya Mishra, Suhani Sharma, Prabin Kumar Naik, Rhea Stewart, Adrian D. Hillier, Sudeep Kumar Ghosh, Ravi Prakash Singh2026-02-27🔬 cond-mat

Demonstrating Single Photon Counting with Kinetic Inductance Detectors from 3.8 to 25 $μ$ m

This paper demonstrates single-photon counting capabilities of superconducting Microwave Kinetic Inductance Detectors across the 3.8 to 25 $\mu$ m mid-infrared range, achieving high spectral resolving powers and ultra-low dark count rates with membrane-based designs that significantly outperform solid-substrate counterparts.

Wilbert G. Ras-Vinke, Kevin Kouwenhoven, Jochem J. A. Baselmans, Kenichi Karatsu, David J. Thoen, Vignesh Murugesan, Pieter J. de Visser2026-02-27🔭 astro-ph

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