Conferences and symposia. 70th anniversary of the E.K. Zavoisky physical-technical institute, Kazan scientific center of the Russian academy of sciences
Long-range ballistic transport mechanisms in superconducting spintronics
A.I. Buzdinc aInstitute for Physics of Microstructures, Russian Academy of Sciences, ul. Ul'yanova 46, Nizhnii Novgorod, 603950, Russian Federation bLobachevsky State University of Nizhny Novgorod (National Research University), prosp. Gagarina 23, Nizhny Novgorod, 603950, Russian Federation cUniversity of Bordeaux, LOMA UMR-CNRS 5798, Talence Cedex, F-33405, France
We present a review of mechanisms responsible for the long-range Josephson transport in ballistic hybrid structures superconductor/ferromagnet/superconductor (SFS) with the exchange field modulated either in coordinate or momentum space. These mechanisms are based on the suppression of the destructive interference of electronic and hole waves in the ferromagnet caused by the exchange field. The interference suppression results in the slow decay of the singlet component of the pair correlation function in a ferromagnet and increase in the Josephson current in SFS structures.
Keywords: spintronics, superconductor—ferromagnet hybrids, Josephson effect, proximity effect, triplet superconductivity PACS:74.45.+c, 74.78.Na, 85.25.Cp (all) DOI:10.3367/UFNe.2016.02.037769 URL: https://ufn.ru/en/articles/2016/6/f/ Citation: Samokhvalov A V, Mel’nikov A S, Buzdin A I "Long-range ballistic transport mechanisms in superconducting spintronics" Phys. Usp.59 571–576 (2016)