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Effect of magnetic pair breaking on Andreev bound states and resonant supercurrent in quantum dot Josephson junctions

URN to cite this document:
urn:nbn:de:bvb:355-epub-20460
Tkachov, Grygoriy ; Richter, Klaus
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PDF - Accepted Version
arXiv PDF (01.02.2007)
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arXiv PDF (07.09.2006)
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Date of publication of this fulltext: 05 Aug 2009 13:35

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    Tkachov, Grygoriy and Richter, Klaus (2007) Effect of magnetic pair breaking on Andreev bound states and resonant supercurrent in quantum dot Josephson junctions. Physical Review B (PRB) 75 (13), p. 134517. [Currently displayed]



Abstract

We propose a model for resonant Josephson tunneling through quantum dots that accounts for Cooper pair-breaking processes in the superconducting leads caused by a magnetic field or spin-flip scattering. The pair-breaking effect on the critical supercurrent I_c and the Josephson current-phase relation I(φ) is largely due to the modification of the spectrum of Andreev bound states below the reduced ...

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