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Precessional switching in submicrometer spin valves

Published

Author(s)

Shehzaad F. Kaka, Stephen E. Russek

Abstract

Small spin valves are switched using a subnanosecond field pulse applied alongdg the magnetization hard-axis fields increases as the duration is decreased from 325 to 230 ps. This indicates a large-angle precessional motion in response to the transverse applied filed. The behavior is modeled with a single-domain, Landau-Lifshitz simulation. Switching in the manner requires only single-polarity transverse pulses that toggle the state of magnetic devices. This process consumes less energy than traditional quasi-static switching using long-duration field pulses along both directions.
Citation
Applied Physics Letters
Volume
80
Issue
16

Keywords

magnetization dynamics, magnetization reversal, MRAM, precession, spin-valves, switching
Created April 22, 2002, Updated February 19, 2017