Circuit theory for crossed Andreev reflection and nonlocal conductance |
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| Authors: | J.P. Morten A. Brataas W. Belzig |
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| Affiliation: | (1) Department of Physics, Norwegian University of Science and Technology, 7491 Trondheim, Norway;(2) Centre for Advanced Study, Drammensveien 78, 0271 Oslo, Norway;(3) Department of Physics, University of Konstanz, 78457 Konstanz, Germany |
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| Abstract: | Nonlocal currents, in devices where two normal-metal terminals are contacted to a superconductor, are determined using the circuit theory of mesoscopic superconductivity. We calculate the conductance associated with crossed Andreev reflection and electron transfer between the two normal-metal terminals, in addition to the conductance from direct Andreev reflection and quasiparticle tunneling. Dephasing and proximity effect are taken into account. PACS 74.45.+c, 74.25.Fy, 73.23.-b |
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