1 citations · 1 across the 1 of their papers we have counts for
6 papers
Spin momentum transfer and Oersted field induce a vortex nano-oscillator in thin ferromagnetic film devices
M. A. Hoefer, T. J. Silva
A nonlinear model of spin-wave excitation involving a point contact in a thin ferromagnetic film that includes the Oersted magnetic field contribution is presented. We consider the…
Large angle magnetization dynamics measured by time-resolved ferromagnetic resonance
Th. Gerrits, M. L. Schneider, A. B. Kos +1
A time-resolved ferromagnetic resonance technique was used to investigate the magnetization dynamics of a 10 nm thin Permalloy film. The experiment consisted of a sequence of magne…
Spin transfer switching of spin valve nanopillars using nanosecond pulsed currents
Shehzaad Kaka, Matthew Pufall, William Rippard +4
Spin valve nanopillars are reversed via the mechanism of spin momentum transfer using current pulses applied perpendicular to the film plane of the device. The applied pulses were…
Frequency Modulation of Spin-Transfer Oscillators
M. R. Pufall, W. H. Rippard, S. Kaka +2
Spin-polarized dc electric current flowing into a magnetic layer can induce precession of the magnetization at a frequency that depends on current. We show that addition of an ac c…
Large-angle, gigahertz-rate random telegraph switching induced by spin-momentum transfer
Matthew R. Pufall, William H. Rippard, Shehzaad Kaka +4
We show that spin-polarized dc current passing through a small magnetic element induces two-state, random telegraph switching of the magnetization via the spin-momentum transfer ef…
Direct-Current Induced Dynamics in Co90Fe10/Ni80Fe20 Point Contacts
W. H. Rippard, M. R. Pufall, S. Kaka +2
We have directly measured coherent high-frequency magnetization dynamics in ferromagnet films induced by a spin-polarized DC current. The precession frequency can be tuned over a r…