Revealing Intrinsic Superconductivity of the Nb/BiSbTe2Se Interface

Авторы: Kudriashov Andrei, Babich Ian, Hovhannisyan Razmik A., Shishkin Andrey G., Kozlov Sergei N., Fedorov Alexander, Vyalikh Denis V., Khestanova Ekaterina, Kupriyanov Mikhail Yu, Stolyarov Vasily S.
Журнал: Advanced Functional Materials
Год издания: 2022
Издательство: John Wiley & Sons Ltd.
Местоположение издательства: United Kingdom
Первая страница: 2209853
DOI: 10.1002/adfm.202209853
Аннотация: Typically, topological superconductivity is reachable via proximity effect by adirect deposition of superconductor (S) on top of a topological insulator (TI)surface. Here, the double critical current in the Josephson junctions based onthe topological insulator is observed in the fabricated planar SuperconductingQuantum Interference Devicea. By measuring critical currents as a functionof temperature and magnetic field, it is shown that the second critical currentstems from the intrinsic superconductivity of the S–TI interface, which issupported by the modified Resistively Shunted Junction model and Trans-mission Electron Microscopy studies. This complex structure of the inter-face should be taken into account when the technological process involvesAr-plasma cleaning.
Добавил в систему: Столяров Василий Сергеевич

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