Weitzel, Alexander and Pfaffinger, Lea and Maccari, Ilaria and Kronfeldner, Klaus and Huber, Thomas and Fuchs, Lorenz and Mallord, James and Linzen, Sven and Il'Ichev, Evgeni and Paradiso, Nicola and Strunk, Christoph (2023) Sharpness of the Berezinskii-Kosterlitz-Thouless Transition in Disordered NbN Films. PHYSICAL REVIEW LETTERS, 131 (8): 186002. ISSN 0031-9007, 1079-7114
Full text not available from this repository. (Request a copy)Abstract
We present a comprehensive investigation of the Berezinskii-Kosterlitz-Thouless transition in ultrathin strongly disordered NbN films. Measurements of resistance, current-voltage characteristics, and kinetic inductance on the very same device reveal a consistent picture of a sharp unbinding transition of vortex-antivortex pairs that fit standard renormalization group theory without extra assumptions in terms of inhomogeneity. Our experiments demonstrate that the previously observed broadening of the transition is not an intrinsic feature of strongly disordered superconductors and provide a clean starting point for the study of dynamical effects at the Berezinskii-Kosterlitz-Thouless transition.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAGNETIC-FIELD; SUPERFLUID DENSITY; SUPERCONDUCTIVITY; FLUCTUATIONS; BEHAVIOR; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 Mar 2024 11:21 |
| Last Modified: | 10 Mar 2024 11:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59569 |
Actions (login required)
 |
View Item |
