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0-pi transition in superconductor-ferromagnet-superconductor junctions with strongly spin.

Kashuba, O. and Blanter, Ya M. and Falko, Vladimir I. (2007) 0-pi transition in superconductor-ferromagnet-superconductor junctions with strongly spin. Physical Review B, 75. p. 132502. ISSN 1550-235X

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Abstract

We develop a theory of the critical current in superconductor–ferromagnetic alloy–superconductor trilayers, which takes into account the strong spin dependence of electron scattering on compositional disorder in a diluted ferromagnetic alloy. We show that in such a system the critical current oscillations as a function of the thickness of the ferromagnetic layer, with period of vF/2I, vF and I being the Fermi velocity and exchange splitting, respectively, decay exponentially with a characteristic length of the order of the mean free path.

Item Type: Article
Journal or Publication Title: Physical Review B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 18682
Deposited By: ep_ss_importer
Deposited On: 28 Oct 2008 16:41
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:20
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/18682

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