Аннотация
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.
Язык оригинала | английский |
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Номер статьи | 14104 |
Страницы (с-по) | 14104 |
Число страниц | 7 |
Журнал | Scientific Reports |
Том | 8 |
Номер выпуска | 1 |
DOI | |
Состояние | Опубликовано - 20 сент. 2018 |