125 citations · 198 across the 8 of their papers we have counts for
6 papers · 1 filter
Low frequency noise characteristics of sub-micron magnetic tunnel junctions
B. Zhong, Y. Chen, S. Garzon +2
We report that low frequency (up to 200 kHz) noise spectra of magnetic tunnel junctions with areas ~10^{-10}cm^2$ at 10 Kelvin deviate significantly from the typical 1/f behavior f…
Time domain detection of pulsed spin torque damping reduction
Longfei Ye, Samir Garzon, Richard A. Webb +3
Combining multiple ultrafast spin torque impulses with a 5 nanosecond duration pulse for damping reduction, we observe time-domain precession which evolves from an initial 1 ns dur…
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…
Enhanced Spin Dependent Shot Noise in Magnetic Tunnel Barriers
S. Garzon, Y. Chen, R. A. Webb
We report the observation of enhanced spin dependent shot noise in magnetic tunnel barriers, suggesting transport through localized states within the barrier. This is supported by…
Temperature dependent asymmetry of the nonlocal spin-injection resistance: evidence for spin non-conserving interface scattering
Samir Garzon, Igor Zutic, Richard A. Webb
We report nonlocal spin injection and detection experiments on mesoscopic Co-Al2O3-Cu spin valves. We have observed a temperature dependent asymmetry in the nonlocal resistance bet…