357 citations
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7 papers · 1 filter
Self-Consistent Computation of Spin Torques and Magneto-Resistance in Tunnel Junctions and Magnetic Read-Heads with Metallic Pinhole Defects
Serban Lepadatu, Alexey Dobrynin
A three-dimensional self-consistent spin transport model is developed, which includes both tunnelling transport, as well as metallic transport. Using the spin accumulation computed…
Effect of resistance feedback on spin torque-induced switching of nanomagnets
Samir Garzon, Richard A. Webb, Mark Covington +2
In large magnetoresistance devices spin torque-induced changes in resistance can produce GHz current and voltage oscillations which can affect magnetization reversal. In addition,…
Macrospin model of incubation delay due to the field-like spin transfer torque
Samir Garzon, Yaroslaw Bazaliy, Richard A. Webb +3
We show that the absence of pre-switching oscillations ("incubation delay") in magnetic tunnel junctions can be explained within the macrospin model by a sizable field-like compone…
Resonant electronic states and I-V curves of Fe/MgO/Fe(100) tunnel junctions
Ivan Rungger, Oleg N. Mryasov, Stefano Sanvito
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 non-equi…
Current-Induced Motion of Narrow Domain Walls and Dissipation in Ferromagnetic Metals
M. Benakli, J. Hohlfeld, A. Rebei
Spin transport equations in a non-homogeneous ferromagnet are derived in the limit where the sd exchange coupling between the electrons in the conduction band and those in the d ba…
The Origin of Tunneling Anisotropic Magnetoresistance in Break Junctions
J. D. Burton, R. F. Sabirianov, J. P. Velev +2
First-principles calculations of electron tunneling transport in Ni and Co break junctions reveal strong dependence of the conductance on the magnetization direction, an effect kno…