π-0 transition in superconductor-ferromagnet-superconductor junctions
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 102810
Author(s) Chtchelkatchev, NM; Belzig, W; Nazarov, YV; Bruder, C
Author(s) at UniBasel Bruder, Christoph
Year 2001
Title π-0 transition in superconductor-ferromagnet-superconductor junctions
Journal JETP letters
Volume 74
Number 6
Pages / Article-Number 323-327
Abstract

Superconductor-ferromagnet-superconductor (SFS) Josephson junctions are known to exhibit a transition between pi and 0 states. In this letter, we find the pi -0 phase diagram of an SFS junction depending on the transparency of an intermediate insulating layer (I). We show that, in general, the Josephson critical current is nonzero at the pi -0 transition temperature. Contributions to the current from the two spin channels nearly compensate each other, and the first harmonic of the Josephson current as a function of phase difference is suppressed. However, higher harmonics give a nonzero contribution to the supercurrent. (C) 2001 MAIK ``Nauka / Interperiodica``.

Publisher American Institute of Physics
ISSN/ISBN 0021-3640
edoc-URL http://edoc.unibas.ch/dok/A5252852
Full Text on edoc No
Digital Object Identifier DOI 10.1134/1.1421408
ISI-Number WOS:000172035300008
Document type (ISI) Article
Additional Information Variant title: pi-0 transition in superconductor-ferromagnet-superconductor junctions
 
   

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