Magnetization reversal dependence on magnetic properties of a spin torque oscillator with in-plane anisotropy free layer and orthogonal polarizer |
| |
Authors: | R. Sbiaa |
| |
Affiliation: | Department of Physics, Sultan Qaboos University, P.O. Box 36, PC 123, Muscat, Oman |
| |
Abstract: | The effect of magnetic properties on magnetization dynamics is studied for a spin torque oscillator (STO) composed of a free layer with an in-plane magnetic anisotropy and a reference layer with a fixed out-of plane magnetization. A transition from damped to uniform oscillations is observed for a critical value of saturation magnetization MS). In the uniform oscillations regime, the frequency is inversely proportional to MS. Similarly, the critical current for achieving uniform oscillations is investigated as a function of free layer intrinsic properties. In a second part of the study, the magnetostatic field (Hm) from the reference layer is considered and it is revealed that the out-of plane component of magnetization has a strong dependence on Hm. For a particular configuration, Hm could reduce the out-of plane component maximizing thus the out-put signal of the STO. |
| |
Keywords: | Spin transfer torque Magnetization reversal Spin torque oscillator |
本文献已被 ScienceDirect 等数据库收录! |
|