Nonreciprocal electron transport in finite-size superconductor/ferromagnet bilayers with strong spin-orbit coupling
Source abstract
Abstract
We show that spin-orbit coupling at the interface between a superconducting film of the finite lateral size and the underlying ferromagnetic insulator with in-plane exchange field gives rise to a series of nonreciprocal effects provided the superconducting pairing is enhanced near the boundaries of the superconductor due to, e.g., variation of the film thickness or of the interlayer electron transparency. Specifically, the critical temperature and the critical depairing current are shown to depend on the relative orientation between the exchange field in the ferromagnet and the superconducting film boundaries. The discovered anisotropy of the superconducting properties is promising for the design of diode-type elements in superconducting spintronics.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Physics of Superconductivity and Magnetism · Quantum and electron transport phenomena · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute for Physics of Microstructures, Russian Academy of Sciences, 603950 Nizhny Novgorod, GSP-105, Russia
Moscow Institute of Physics and Technology, Dolgoprudnyi, Moscow Region 141701, Russia
University Bordeaux, LOMA UMR-CNRS 5798, F-33405 Talence Cedex, France
World-Class Research Center “Digital Biodesign and Personalized Healthcare”, Sechenov First Moscow State Medical University, Moscow 19991, Russia
Funding
Russian Science Foundation · Foundation for the Advancement of Theoretical Physics and Mathematics · Agence Nationale de la Recherche · European Cooperation in Science and Technology
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