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Title: Dynamical instability of the electric transport in superconductors

Abstract

We develop a nonlinear theory of the electronic transport in superconductors in the framework of the time-dependent Ginzburg-Landau (TDGL) equation. We utilize self-consistent Gaussian approximation and reveal the conditions under which the current-voltage V(I) dependence (I-V characteristics) acquires an S-shape form leading to switching instabilities. We demonstrate that in two-dimensions the emergence of such an instability is a hallmark of the Berezinskii-Kosterlitz-Thou less (BKT) transition that we have detected by transport measurements of titanium nitride (TiN) films. Our theoretical findings compare favorably with our experimental results.

Authors:
 [1]; ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [4];  [5]
  1. Peking Univ., Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
  2. Russian Academy of Sciences (RAS), Novosibirsk (Russian Federation)
  3. Russian Academy of Sciences (RAS), Novosibirsk (Russian Federation); Novosibirsk State Univ. (Russian Federation)
  4. Argonne National Lab. (ANL), Lemont, IL (United States)
  5. National Chiao Tung Univ., Hsinchu (China); Bar-Ilan Univ., Ramat-Gan (Israel)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Natural Science Foundation of China (NNSFC); USDOE Office of Science - Office of Basic Energy Sciences - Materials Sciences and Engineering Division; Russian Science Foundation
OSTI Identifier:
1476650
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Qiao, Lei, Li, Dingping, Postolova, Svetlana V., Mironov, Alexey Yu., Vinokur, Valerii, and Rosenstein, Baruch. Dynamical instability of the electric transport in superconductors. United States: N. p., 2018. Web. doi:10.1038/s41598-018-32302-8.
Qiao, Lei, Li, Dingping, Postolova, Svetlana V., Mironov, Alexey Yu., Vinokur, Valerii, & Rosenstein, Baruch. Dynamical instability of the electric transport in superconductors. United States. doi:10.1038/s41598-018-32302-8.
Qiao, Lei, Li, Dingping, Postolova, Svetlana V., Mironov, Alexey Yu., Vinokur, Valerii, and Rosenstein, Baruch. Thu . "Dynamical instability of the electric transport in superconductors". United States. doi:10.1038/s41598-018-32302-8. https://www.osti.gov/servlets/purl/1476650.
@article{osti_1476650,
title = {Dynamical instability of the electric transport in superconductors},
author = {Qiao, Lei and Li, Dingping and Postolova, Svetlana V. and Mironov, Alexey Yu. and Vinokur, Valerii and Rosenstein, Baruch},
abstractNote = {We develop a nonlinear theory of the electronic transport in superconductors in the framework of the time-dependent Ginzburg-Landau (TDGL) equation. We utilize self-consistent Gaussian approximation and reveal the conditions under which the current-voltage V(I) dependence (I-V characteristics) acquires an S-shape form leading to switching instabilities. We demonstrate that in two-dimensions the emergence of such an instability is a hallmark of the Berezinskii-Kosterlitz-Thou less (BKT) transition that we have detected by transport measurements of titanium nitride (TiN) films. Our theoretical findings compare favorably with our experimental results.},
doi = {10.1038/s41598-018-32302-8},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United States},
year = {2018},
month = {9}
}

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