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Resonant Spin-Transfer-Driven Switching of Magnetic Devices Assisted by Microwave Current Pulses
Y. -T. Cui, J. C. Sankey, C. Wang +4
The torque generated by the transfer of spin angular momentum from a spin-polarized current to a nanoscale ferromagnet can switch the orientation of the nanomagnet much more effici…
Strong linewidth variation for spin-torque nano-oscillators as a function of in-plane magnetic field angle
K. V. Thadani, G. Finocchio, Z. -P. Li +6
We measure the microwave signals produced by spin-torque-driven magnetization dynamics in patterned magnetic multilayer devices at room temperature, as a function of the angle of a…
Magnetoresistance and spin-transfer torque in magnetic tunnel junctions
J. Z. Sun, D. C. Ralph
We comment on both recent progress and lingering puzzles related to research on magnetic tunnel junctions (MTJs). MTJs are already being used in applications such as magnetic-field…
Spin Transfer Torques
D. C. Ralph, M. D. Stiles
This tutorial article introduces the physics of spin transfer torques in magnetic devices. We provide an elementary discussion of the mechanism of spin transfer torque, and review…
Measurement of the Spin-Transfer-Torque Vector in Magnetic Tunnel Junctions
J. C. Sankey, Y. -T. Cui, R. A. Buhrman +3
Spin-polarized currents can transfer spin angular momentum to a ferromagnet, generating a torque that can efficiently reorient its magnetization. Achieving quantitative measurement…
Magnetic vortex oscillator driven by dc spin-polarized current
V. S. Pribiag, I. N. Krivorotov, G. D. Fuchs +5
Transfer of angular momentum from a spin-polarized current to a ferromagnet provides an efficient means to control the dynamics of nanomagnets. A peculiar consequence of this spin-…