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Analysis of nonlinear conductivity of point contacts on the base of FeSe in the normal and superconducting stateстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 декабря 2018 г.
- Авторы: Naidyuk Y.G., Gamayunova N.V., Kvitnitskaya O.E., Fuchs G., Chareev D.A., Vasiliev A.N.
- Журнал: Low Temperature Physics
- Том: 42
- Номер: 1
- Год издания: 2016
- Издательство: AIP Publishing
- Местоположение издательства: United States
- Первая страница: 31
- Последняя страница: 35
- DOI: 10.1063/1.4939153
- Аннотация: Nonlinear conductivity of point contacts (PCs) on the base of FeSe single crystals has been investigated. Measured dV/dI dependencies demonstrate the prevailing contribution to the PC conductivity caused by the degraded surface. Superconducting (SC) feature in dV/dI like a sharp zero-bias minimum develops for relatively low ohmic PCs, where the deep areas of FeSe are involved. Analysis of dV/dI has shown that the origin of the zero-bias minimum is connected with the Maxwell part of the PC resistance, what masks energy dependent spectral peculiarities. Even so, we have found the specific features in dV/dI—the sharp side maxima, which may have connection to the SC gap, since their position follows the BCS temperature dependence. Exploring the dV/dI spectra of the rare occurrence with Andreev-like structure, the two gaps with Δ = 2.5 and 3.5 meV were identified.
- Добавил в систему: Чареев Дмитрий Александрович