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Critical current oscillations in S/F heterostructures in the presence of s-d scatteringстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Vedyayev A.V., Ryzhanova N.V., Pugach N.G.
- Журнал: Journal of Magnetism and Magnetic Materials
- Том: 305
- Номер: 1
- Год издания: 2006
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 53
- Последняя страница: 56
- DOI: 10.1016/j.jmmm.2005.11.026
- Аннотация: Josephson current is investigated in the superconductor/ferromagnet/superconductor junction. It was shown that the current exhibited damping oscillations as a function of the ferromagnetic layer thickness. Previous theories based on Usadel or Eilenberger equations have predicted that the damping length and oscillation period divided by 2 pi were the same for weak ferromagnetic spacer. This contradicts past experiments. A new calculation of the Josephson current is proposed. The Gorkov equations are solved taking into account s-d scattering in ferromagnet. It is shown that the oscillation period del bends only on the exchange magnetic field in the spacer, whereas the damping length is connected to the ferromagnetic mean free path. The concordance with the former experiment allows one to conclude that s-d scattering as a pair-breaking mechanism plays a significant role in the proximity effect in S/F heterostructures. (c) 2005 Elsevier B.V. All rights reserved.
- Добавил в систему: Ведяев Анатолий Владимирович