Dependence of spin torque diode voltage on applied field direction

作者:Taniguchi Tomohiro*; Imamura Hiroshi
来源:Journal of Applied Physics, 2013, 114(5): 053903.
DOI:10.1063/1.4817281

摘要

The optimum condition of an applied field direction to maximize spin torque diode voltage was theoretically derived for a magnetic tunnel junction with a perpendicularly magnetized free layer and an in-plane magnetized pinned layer. We found that the diode voltage for a relatively small applied field is maximized when the projection of the applied field to the film-plane is parallel or anti-parallel to the magnetization of the pinned layer. However, by increasing the applied field magnitude, the optimum applied field direction shifts from the parallel or anti-parallel direction. These analytical predictions were confirmed by numerical simulations.

  • 出版日期2013-8-7