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- Title
Josephson effect in superconducting constrictions with hybrid SF electrodes: Peculiar properties determined by the misorientation of magnetizations.
- Authors
Zaitsev, A. V.
- Abstract
Josephson current in SFcFS junctions with arbitrary transparency of the constriction (c) is investigated. The emphasis is on the analysis of the supercurrent dependencies on the misorientation angle θ between the in-plane magnetizations of diffusive ferromagnetic layers (F). It is found that the current-phase relation I(φ) may be radically modified with the θ variation: the harmonic I 1 sin φ vanishes for a definite value of θ provided that, for an identical orientation of the magnetizations (θ = 0), the junction is in the “π” state. The Josephson current may exhibit a nonmonotonic dependence on the misorientation angle both for realization of the “0” and “π” state at θ = 0. We also analyze the effect of the exchange field induced enhancement of the critical current, which may occur in a definite range of θ.
- Subjects
SUPERCONDUCTIVITY; ELECTRODES; QUANTUM tunneling; ELECTRIC resistors; FERROMAGNETISM; MAGNETIZATION; ELECTRIC currents
- Publication
JETP Letters, 2006, Vol 83, Issue 6, p233
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364006060038