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The exploration of the superconductivity in two-dimensional materials has garnered significant attention due to their promising low-power applications and fundamental scientific interest. Here, we report some novel stable non-van der Waals…

Superconductivity · Physics 2025-05-22 Si-Yi Xiong , Peng Jiang , Yiming Wang , Yan-Ling Li

Effects of non-magnetic disorder on the critical temperature T_c and on diamagnetism of quasi-one-dimensional superconductors are reported. The energy of Josephson-coupling between wires is considered to be random, which is typical for…

Superconductivity · Physics 2015-05-27 E. Nakhmedov , R. Oppermann

The effect of disorder is investigated in granular superconductive materials with strong and weak links. The transition is controlled by the interplay of the \emph{tunneling} $g$ and \emph{intragrain} $g_{intr}$ conductances, which depend…

Superconductivity · Physics 2010-12-07 L. Ponta , A. Carbone , M. Gilli

In this article we study superconductor-insulator transitions within the general framework of an attractive Hubbard model. This is a well-defined model of s-wave superconductivity which permits different tuning parameters (disorder and…

Superconductivity · Physics 2013-09-19 Yen Lee Loh , Nandini Trivedi

We reconsider the phase diagram of a three-dimensional $\mathbb{Z}_2$ topological insulator in the presence of short-ranged potential disorder with the insight that non-perturbative rare states destabilize the noninteracting Dirac semimetal…

Disordered Systems and Neural Networks · Physics 2024-06-28 Yixing Fu , Justin H. Wilson , David A. Huse , J. H. Pixley

Superconductivity in disordered systems close to an incipient localization transition has been an area of investigation for many years. It has been noted that in such highly disordered superconductors, anomalous spectral weight develops in…

Realizing experimental control of superconductivity is of paramount importance to advancing both basic research and technological applications. Disorder, generally existing in most superconductors, intricately interacts with Cooper pairs…

The discovery of superconductivity in infinite-layer nickelates has added a new family of materials to the fascinating growing class of unconventional superconductors. By incorporating the strongly correlated multi-orbital nature of the…

Superconductivity · Physics 2022-08-15 Andreas Kreisel , Brian M. Andersen , Astrid T. Rømer , Ilya M. Eremin , Frank Lechermann

Porous silicon, obtained by electrochemical etching, has been used as a substrate for the growth of nanoperforated Nb thin films. The films, deposited by UHV magnetron sputtering on the porous Si substrates, inherited their structure made…

We report a systematic study of thickness-dependent superconductivity and carrier transport properties in exfoliated layered 2H-NbS2. Hall-effect measurements reveal 2H-NbS2 in its normal state to be a p-type metal with hole mobility of 1-3…

Nickel-based superconductors provide a long-awaited experimental platform to explore possible cuprate-like superconductivity. Despite similar crystal structure and $d$ electron filling, these systems exhibit several differences. Nickelates…

The recently emerging superconductivity in infinite-layer nickelates, with isostructure and isoelectron of cuprates, provides a new platform to explore the pairing mechanism of high-temperature superconductors. In this work, we studied the…

Superconductivity · Physics 2023-06-14 Wei Wei , Wenjie Sun , Yue Sun , Gangjian Jin , Feng Yang , Yueying Li , Zengwei Zhu , Yuefeng Nie , Zhixiang Shi

Universal properties of the zero temperature superconductor-insulator transition in two-dimensional amorphous films are studied by extensive Monte Carlo simulations of bosons in a disordered medium. We report results for both short-range…

Condensed Matter · Physics 2009-10-22 M. Wallin , E. Sorensen , S. M. Girvin , A. P. Young

The superconductor-insulator transition in ultrathin films of amorphous Bi was tuned by changing the film thickness, with and without an applied magnetic field. The first experimentally obtained phase diagram is mapped as a function of…

Disordered Systems and Neural Networks · Physics 2009-10-31 N. Markovic , C. Christiansen , A. M. Goldman

Due to their high kinetic inductance, highly disordered superconducting thin films are a potential hardware for the realization of compact, low-noise elements in cryoelectronic applications. However, high disorder typically results in…

Superconductivity · Physics 2026-02-12 J. Lorenz , S. Linzen , M. Ziegler , G. Oelsner , R. Stolz , F. S. Tautz , F. Lüpke , E. Il'ichev

In contrast to its bulk crystals, the FeSe film or layer exhibits better superconductivity performance, which attract much interest in its fundamental research as well as potential application. In present work, transition from insulator to…

Superconductivity · Physics 2017-03-27 Wenbin Qiu , Zongqing Ma , Yongchang Liu , Xiaolin Wang , Shi Xue Dou

We combine measurements of the longitudinal ($\rho_{xx}$) and Hall ($\rho_{xy}$) resistivities of disordered two dimensional amorphous indium-oxide films to study the magnetic-field tuned superconductor to insulator transition (H-SIT) in…

Superconductivity · Physics 2016-01-13 Nicholas P. Breznay , Myles A. Steiner , Steven A. Kivelson , Aharon Kapitulnik

Disordered superconducting nitrides with kinetic inductance have long been considered a leading material candidate for high-inductance quantum-circuit applications. Despite continuing efforts in reducing material dimensions to increase the…

We review the empirical scenario emerging from the measured doping dependence of the transition temperature and the anisotropy parameter $% \gamma $ $=\xi _{ab}/\xi_{c}$, defined as the ratio of the correlation lengths parallel and…

Superconductivity · Physics 2007-05-23 T. Schneider

We investigate ultrathin superconducting TiN films, which are very close to the localization threshold. Perpendicular magnetic field drives the films from the superconducting to an insulating state, with very high resistance. Further…

Superconductivity · Physics 2007-05-23 T. I. Baturina , C. Strunk , M. R. Baklanov , A. Satta