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dc.contributor.authorManchon, Aurelien
dc.contributor.authorZhang, S.
dc.contributor.authorLee, K.-J.
dc.date.accessioned2015-05-18T21:58:15Z
dc.date.available2015-05-18T21:58:15Z
dc.date.issued2010-11-15
dc.identifier.citationSignatures of asymmetric and inelastic tunneling on the spin torque bias dependence 2010, 82 (17) Physical Review B
dc.identifier.issn1098-0121
dc.identifier.issn1550-235X
dc.identifier.doi10.1103/PhysRevB.82.174420
dc.identifier.urihttp://hdl.handle.net/10754/554127
dc.description.abstractThe influence of structural asymmetries (barrier height and exchange splitting), as well as inelastic scattering (magnons and phonons) on the bias dependence of the spin transfer torque in a magnetic tunnel junction is studied theoretically using the free-electron model. We show that they modify the “conventional” bias dependence of the spin transfer torque, together with the bias dependence of the conductance. In particular, both structural asymmetries and bulk (inelastic) scattering add antisymmetric terms to the perpendicular torque (∝V and ∝je|V|) while the interfacial inelastic scattering conserves the junction symmetry and only produces symmetric terms (∝|V|n, n∊N). The analysis of spin torque and conductance measurements displays a signature revealing the origin (asymmetry or inelastic scattering) of the discrepancy.
dc.publisherAmerican Physical Society (APS)
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevB.82.174420
dc.relation.urlhttp://arxiv.org/abs/1110.3492
dc.rightsArchived with thanks to Physical Review B
dc.titleSignatures of asymmetric and inelastic tunneling on the spin torque bias dependence
dc.typeArticle
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSpintronics Theory Group
dc.identifier.journalPhysical Review B
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Physics, University of Arizona, Tucson, Arizona 85721, USA
dc.contributor.institutionDepartment of Materials Science and Engineering, Korea University, Seoul 136-713, Korea
dc.identifier.arxividarXiv:1110.3492
kaust.personManchon, Aurelien
dc.versionv1
refterms.dateFOA2018-06-14T07:49:50Z
dc.date.posted2011-10-16


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