具有自旋轨道/铁磁阀的隧道约瑟夫森结

Tunnel Josephson Junction with Spin-Orbit/Ferromagnetic Valve.

作者信息

Neilo Alexey, Bakurskiy Sergey, Klenov Nikolay, Soloviev Igor, Kupriyanov Mikhail

机构信息

National University of Science and Technology MISIS, 119049 Moscow, Russia.

Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia.

出版信息

Nanomaterials (Basel). 2023 Jun 28;13(13):1970. doi: 10.3390/nano13131970.

DOI:10.3390/nano13131970

PMID:37446484

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10343233/

Abstract

We have theoretically studied the transport properties of the SIsNSOF structure consisting of thick (S) and thin (s) films of superconductor, an insulator layer (I), a thin film of normal metal with spin-orbit interaction (SOI) (NSO), and a monodomain ferromagnetic layer (F). The interplay between superconductivity, ferromagnetism, and spin-orbit interaction allows the critical current of this Josephson junction to be smoothly varied over a wide range by rotating the magnetization direction in the single F-layer. We have studied the amplitude of the spin valve effect and found the optimal ranges of parameters.

摘要

我们从理论上研究了由超导厚膜（S）和薄膜（s）、绝缘层（I）、具有自旋轨道相互作用（SOI）的正常金属薄膜（NSO）以及单畴铁磁层（F）组成的SIsNSOF结构的输运特性。超导性、铁磁性和自旋轨道相互作用之间的相互作用使得通过旋转单个F层中的磁化方向，该约瑟夫森结的临界电流能够在很宽的范围内平滑变化。我们研究了自旋阀效应的幅度并找到了参数的最佳范围。