Spin transfer switching of spin valve nanopillars using nanosecond pulsed currents
arXiv:cond-mat/0411363 · doi:10.1016/j.jmmm.2004.09.095
Abstract
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 varied in amplitude from 1.8 mA to 7.8 mA, and varied in duration within the range of 100 ps to 200 ns. The probability of device reversal is measured as a function of the pulse duration for each pulse amplitude. The reciprocal pulse duration required for 95% reversal probability is linearly related to the pulse current amplitude for currents exceeding 1.9 mA. For this device, 1.9 mA marks the crossover between dynamic reversal at larger currents and reversal by thermal activation for smaller currents.
References in corpus (5)
- Current-driven Magnetization Reversal and Spin Wave Excitations in Co/Cu/Co Pillars
- Magnetization dynamics with a spin-transfer torque
- Current-Driven Magnetic Excitations in Permalloy-Based Multilayer Nanopillars
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Cited by in corpus (7)
- Spin-Torque Ferromagnetic Resonance Measurements of Damping in Nanomagnets
- Magnetic properties of ultra-thin 3d transition-metal binary alloys I: spin and orbital moments, anisotropy, and confirmation of Slater-Pauling behavior
- Measurement of orbital asymmetry and strain in Co90Fe10/Ni multilayers and alloys: Origins of perpendicular anisotropy
- Resonant Spin-Transfer-Driven Switching of Magnetic Devices Assisted by Microwave Current Pulses
- Coherent control of nanomagnet dynamics via ultrafast spin torque pulses
- Ultrafast switching of a nanomagnet by a combined out-of-plane and in-plane polarized spin-current pulse
- Enhancement in spin-torque efficiency by nonuniform spin current generated within a tapered nanopillar spin valve