Abstract:
Various types of the current–phase relation $I(\varphi)$ in superconductor–ferromagnet–superconductor (SFS) point contacts and planar double-barrier junctions are studied within the quasiclassical theory in the limit of thin diffusive ferromagnetic interlayers. The physical mechanisms leading to highly nontrivial $I(\varphi)$ dependence are identified by studying the spectral supercurrent density. These mechanisms are also responsible for the $0$–$\pi$ transition in SFS Josephson junctions.
Citation:
A. A. Golubov, M. Yu. Kupriyanov, Ya. V. Fominov, “Nonsinusoidal current–phase relation in SFS Josephson junctions”, Pis'ma v Zh. Èksper. Teoret. Fiz., 75:11 (2002), 709–713; JETP Letters, 75:11 (2002), 588–592
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