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dc.contributor.authorJohansson, Jan
dc.date.accessioned2013-02-12T09:18:24Z
dc.date.available2013-02-12T09:18:24Z
dc.date.issued2012
dc.identifier.citationJohansson, J. (2012). Spin transport in ferromagnetic/normal-metal tunnel junction arrays. Physical Review B, 85(9). doi: 10.1103/PhysRevB.85.094421no_NO
dc.identifier.issn1098-0121
dc.identifier.urihttp://hdl.handle.net/11250/138267
dc.descriptionPublished version of an article in the journal: Physical Review B. Also available from the publisher:http://dx.doi.org/10.1103/PhysRevB.85.094421no_NO
dc.description.abstractAn array of alternating ferromagnetic and normal-metal islands separated by small tunnel junctions is theoretically investigated in the sequential tunneling regime. A numerical Monte Carlo method is used to calculate the transport properties. The spin-dependent tunneling currents give rise to nonequilibrium spin accumulation on the normal island. The tunneling magneto resistance (TMR) is calculated for a large range of array parameters. The TMR oscillates with bias voltage and can become negative for certain array parameters. We show that the long-range electrostatic interaction in the arrays can significantly increase the TMR; for experimentally accessible parameters the magnitude of the TMR can be as large as 100%.no_NO
dc.language.isoengno_NO
dc.titleSpin transport in ferromagnetic/normal-metal tunnel junction arraysno_NO
dc.typeJournal articleno_NO
dc.typePeer reviewedno_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Physics: 430no_NO
dc.source.volume85no_NO
dc.source.journalPhysical Review Bno_NO
dc.source.issue9no_NO
dc.identifier.doi10.1103/PhysRevB.85.094421


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