dc.contributor.author | SANVITO, STEFANO | en |
dc.contributor.author | RUNGGER, IVAN | en |
dc.date.accessioned | 2014-02-03T12:58:18Z | |
dc.date.available | 2014-02-03T12:58:18Z | |
dc.date.issued | 2009 | en |
dc.date.submitted | 2009 | en |
dc.identifier.citation | I. Rungger, O. Mryasov, and S. Sanvito, Resonant electronic states and I-V curves of Fe/MgO/Fe(100) tunnel junctions, Physical Review B, 79, 2009, 094414 | en |
dc.identifier.other | Y | en |
dc.description | PUBLISHED | en |
dc.description.abstract | The bias dependence of the tunnel magnetoresistance
TMR
of Fe/MgO/Fe tunnel junctions is investigated
theoretically with a fully self-consistent scheme that combines the nonequilibrium Green?s-function method
with density-functional theory. At voltages smaller than 20 mV the
I
-
V
characteristics and the TMR are
dominated by resonant transport through narrow interface states in the minority-spin band. In the parallel
configuration this contribution is quenched by a voltage comparable to the energy width of the interface state,
whereas it persists at all voltages in the antiparallel configuration. At higher bias the transport is mainly
determined by the relative positions of the
1
band edges in the two Fe electrodes, which causes a decrease in
the TMR | en |
dc.description.sponsorship | This work is sponsored by Science Foundation of Ireland
Grants No. 07/IN.1/I945 and No. 07/RFP/PHYF235
and by
Seagate. Computational resources have been provided by
TCHPC and ICHEC. O.M. acknowledges the Science Foun-
dation of Ireland for support during his stay at Trinity Col-
lege
Walton program) | en |
dc.format.extent | 094414 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Physical Review B | en |
dc.relation.ispartofseries | 79 | en |
dc.rights | Y | en |
dc.subject | Physics | en |
dc.title | Resonant electronic states and I-V curves of Fe/MgO/Fe(100) tunnel junctions | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/sanvitos | en |
dc.identifier.rssinternalid | 56806 | en |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevB.79.094414 | en |
dc.rights.ecaccessrights | OpenAccess | |
dc.subject.TCDTheme | Nanoscience & Materials | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | 07/IN.1/I945 | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | 07/RFP/PHYF235 | en |
dc.identifier.uri | http://hdl.handle.net/2262/67974 | |