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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…
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-…
Mechanisms limiting the coherence time of spontaneous magnetic oscillations driven by DC spin-polarized currents
J. C. Sankey, I. N. Krivorotov, S. I. Kiselev +4
The spin-transfer torque from a DC spin-polarized current can generate highly-coherent magnetic precession in nanoscale magnetic-multilayer devices. By measuring linewidths of spec…