Anomalous Bias Dependence of Spin Torque in Magnetic Tunnel Junctions

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dc.creatorTheodonis, Ioannis
dc.creatorKioussis, Nicholas
dc.creatorKalitsov, Alan
dc.creatorChshiev, Mairbek
dc.creatorButler, William
dc.date2006-06-05
dc.date2006-12-06
dc.date.accessioned2026-07-07T08:02:18Z
dc.date.available2026-07-07T08:02:18Z
dc.descriptionWe predict an anomalous bias dependence of the spin transfer torque parallel to interface, $T_{||}$, in magnetic tunnel junctions (MTJ), which can be selectively tuned by the exchange splitting. It may exhibit a sign reversal {\it without} a corresponding sign reversal of the bias or even a quadratic bias dependence. We demonstrate that the underlying mechanism is the interplay of spin currents for the ferromagnetic (antiferromagnetic) configurations, which vary linearly (quadratically) with bias, respectively, due to the symmetric (asymmetric) nature of the barrier. The spin transfer torque perpendicular to interface exhibits a quadratic bias dependence.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0606080
dc.identifierhttp://arxiv.org/abs/cond-mat/0606080
dc.identifierPhys. Rev. Lett. 97, 237205 (2006)
dc.identifierdoi:10.1103/PhysRevLett.97.237205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129195
dc.subjectOther Condensed Matter
dc.titleAnomalous Bias Dependence of Spin Torque in Magnetic Tunnel Junctions
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