Josephson current through a diffusive half metal


Asano, Y. and Tanaka, Y. and Golubov, A.A. (2007) Josephson current through a diffusive half metal. Physica C: Superconductivity, 463-46 . pp. 19-22. ISSN 0921-4534

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Abstract:This paper discusses the Josephson effect in superconductor/diffusive half metal/superconductor junctions. The spin-flip scattering at the junction interfaces opens a Josephson channel between the two spin-singlet superconductors. The odd-frequency equal-spin-triplet Cooper pairs carry the Josephson current. As a consequence, the local density of states in a half metal has a large peak at the Fermi energy. We propose an experimental method to detect odd-frequency pairs by using the scanning tunneling spectroscopy.

Item Type:Article
Additional information:Proceedings of the 19th International Symposium on Superconductivity (ISS 2006)
Copyright:© 2007 Elsevier B.V.
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