Dynamical instability of the electric transport in superconductors

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) acqui...

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Autores principales: Qiao, Lei, Li, Dingping, Postolova, Svetlana V., Mironov, Alexey Yu., Vinokur, Valerii, Rosenstein, Baruch
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147792/
https://www.ncbi.nlm.nih.gov/pubmed/30237416
http://dx.doi.org/10.1038/s41598-018-32302-8
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author Qiao, Lei
Li, Dingping
Postolova, Svetlana V.
Mironov, Alexey Yu.
Vinokur, Valerii
Rosenstein, Baruch
author_facet Qiao, Lei
Li, Dingping
Postolova, Svetlana V.
Mironov, Alexey Yu.
Vinokur, Valerii
Rosenstein, Baruch
author_sort Qiao, Lei
collection PubMed
description 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-Thouless (BKT) transition that we have detected by transport measurements of titanium nitride (TiN) films. Our theoretical findings compare favorably with our experimental results.
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spelling pubmed-61477922019-02-12 Dynamical instability of the electric transport in superconductors Qiao, Lei Li, Dingping Postolova, Svetlana V. Mironov, Alexey Yu. Vinokur, Valerii Rosenstein, Baruch Sci Rep Article 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-Thouless (BKT) transition that we have detected by transport measurements of titanium nitride (TiN) films. Our theoretical findings compare favorably with our experimental results. Nature Publishing Group UK 2018-09-20 /pmc/articles/PMC6147792/ /pubmed/30237416 http://dx.doi.org/10.1038/s41598-018-32302-8 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Qiao, Lei
Li, Dingping
Postolova, Svetlana V.
Mironov, Alexey Yu.
Vinokur, Valerii
Rosenstein, Baruch
Dynamical instability of the electric transport in superconductors
title Dynamical instability of the electric transport in superconductors
title_full Dynamical instability of the electric transport in superconductors
title_fullStr Dynamical instability of the electric transport in superconductors
title_full_unstemmed Dynamical instability of the electric transport in superconductors
title_short Dynamical instability of the electric transport in superconductors
title_sort dynamical instability of the electric transport in superconductors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147792/
https://www.ncbi.nlm.nih.gov/pubmed/30237416
http://dx.doi.org/10.1038/s41598-018-32302-8
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AT mironovalexeyyu dynamicalinstabilityoftheelectrictransportinsuperconductors
AT vinokurvalerii dynamicalinstabilityoftheelectrictransportinsuperconductors
AT rosensteinbaruch dynamicalinstabilityoftheelectrictransportinsuperconductors

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