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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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
Departments: Faculty of Science and Technology > Physics
ID Code: 57044
Deposited By: ep_importer_pure
Deposited On: 31 Aug 2012 10:50
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 08:03

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