Superconducting decay length in a ferromagnetic metal
arXiv:cond-mat/0605137 · doi:10.1134/S0021364006090116
Abstract
The complex decay length xi characterizing penetration of superconducting correlations into a ferromagnet due to the proximity effect is studied theoretically in the frame of the linearized Eilenberger equations. The real part xi_1 and imaginary part xi_2 of the decay length are calculated as functions of exchange energy and the rates of ordinary, spin flip and spin orbit electronic scattering in a ferromagnet. The lengths xi_1,2 determine the spatial scales of, respectively, decay and oscillation of a critical current in SFS Josephson junctions in the limit of large distance between superconducting electrodes. The developed theory provides the criteria of applicability of the expressions for xi_1 and xi_2 in the dirty and the clean limits which are commonly used in the analysis of SF hybrid structures.
5 pages, 3 figures
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Cited by in corpus (5)
- Critical Current Oscillations in Strong Ferromagnetic Pi-Junctions
- Superconductor-insulator-ferromagnet-superconductor Josephson junction: From the dirty to the clean limit
- Spin-memory loss at Co/Ru interfaces
- The physics of superconductor-ferromagnet hybrid structures
- Minigap, Parity Effect and Persistent Currents in SNS Nanorings