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SnS-Andreev Spectroscopy of (K, Na)Fe2Se2 Superconducting Selenideстатья
Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
- Авторы: Ilina A.D., Mikhailov V.M., Nikitchenkov I.A., Morozov I.V., Shilov A.I., Kuzmichev S.A., Kuzmicheva T.E.
- Журнал: Bulletin of the Lebedev Physics Institute
- Том: 50
- Номер: 12
- Год издания: 2023
- Первая страница: 545
- Последняя страница: 551
- DOI: 10.3103/s1068335623120060
- Аннотация: Using incoherent multiple Andreev reflection effect spectroscopy, the gap structure of superconducting (K0.8Na0.2)0.8Fe1.6Se2 (the 122-Se family) and the temperature evolution of the features caused by Andreev transport in I(V) and dI(V)/dV curves of planar SnS-contacts formed in this compound: the Andreev excess current I^A_{exc}(T) at eV >> 2Δ and the Andreev zero-bias conductance G^A_{ZBC}(T) are studied for the first time. The magnitude of the superconducting order parameter Δ(0) ≈ 5.3 meV is determined. The possibility of describing the obtained results within the available theoretical models is discussed.
- Добавил в систему: Кузьмичев Светослав Александрович