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arXiv · 1401.8088

Self-Oscillation in Spin Torque Oscillator Stabilized by Field-like Torque

Tomohiro Taniguchi·Sumito Tsunegi·Hitoshi Kubota·Hiroshi Imamura
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Abstract

The self-oscillation of the magnetization in a spin torque oscillator (STO) with a perpendicularly magnetized free layer and an in-plane magnetized pinned layer in the absence of an applied magnetic field was studied by numerically solving the Landau-Lifshitz-Gilbert equation. It was pointed out that field-like torque was necessary to realize stable self-oscillation in this type of STO at zero field. The numerical simulation at finite temperature showed that the presence of the field-like torque led to a high power with a relatively high oscillation frequency.

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Tomohiro Taniguchi, Sumito Tsunegi, Hitoshi Kubota, Hiroshi Imamura. 2014-04-17. Self-Oscillation in Spin Torque Oscillator Stabilized by Field-like Torque. https://doi.org/10.1063/1.4871699

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