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The microscopic theory of the Josephson current in junctions with multi-band-superconductorsтезисы доклада
- Авторы: Devyatov I.A., Burmistrova A.V.
- Сборник: The microscopic theory of the Josephson current in junctions with multi-band-superconductors, Нанофизика и Наноээлектроника
- Том: 1
- Тезисы
- Год издания: 2014
- Место издания: Труды VIII Международного симпозиума, Нижний Новгород, 10-14 марта 2014 г Нижний Новгород
- Первая страница: 41
- Последняя страница: 42
- Аннотация: Microscopic theory of dc Josephson current in contacts between high temperature Fe-based superconductor and spin-singlet s-wave superconductor are presented here. The basis of our method is the construction of a coherent temperature Green’s function of the conventional spin-singlet s-wave superconductor/Fe-based superconductor (FeBS) junction in the framework of the tight-binding model. We calculate the phase dependencies of the Josephson current for different directions of current relative to the crystallographic axes of Fe-based superconductor and different length of an insulator layer and temperature dependencies of the critical Josephson current. This proposed method can be applied for calculations of normal and dc Josephson current in contacts with other new unconventional multiorbital superconductors as Sr2RuO4 and doped superconducting insulator CuxBi2Se3. We confirm microscopically the previously suggested crucial experiment to determine the type of the superconducting order parameter symmetry in Fe-based superconductors. We also calculated current-voltage characteristics (CVC) of FeBs break junctions in c direction.
- Добавил в систему: Девятов Игорь Альфатович