Magnon-assisted Andreev reflection in a ferromagnet-superconductor junction

McCann, E and Falko, Vladimir (2001) Magnon-assisted Andreev reflection in a ferromagnet-superconductor junction. EPL, 56 (4). pp. 583-589. ISSN 0295-5075

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Abstract

A new mechanism for inelastic Andreev reflection at a ferromagnetic metal-superconductor interface is proposed, which consists of the simultaneous injection of a Cooper pair from the superconductor and the emission of a magnon inside the ferromagnet. We nd that this process generates an additional contribution to the subgap non-linear I(V) characteristics, which is asymmetric with respect to the sign of the bias voltage and is related to the density of states of magnons in the ferromagnet.

Item Type:
Journal Article
Journal or Publication Title:
EPL
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
57044
Deposited By:
Deposited On:
31 Aug 2012 10:50
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Apr 2020 02:14