Spin-torque oscillator based on tilted magnetization of the fixed layer

Details Spin-torque oscillator based on tilted magnetization of the fixed layer Spin-torque oscillator based on tilted magnetization of the fixed layer

2008-04-26

arxiv.org/abs/0804.4213v1

Physics

Condensed Matter

Materials Science

10 pages, 3 figures, regular refereed journal

Scientific paper

The spin torque oscillator (STO), where the magnetization of the fixed layer is tilted out of the film plane, is capable of strong microwave signal generation in zero magnetic field. Through numerical simulations of the Landau-Lifshitz-Gilbert-Slonczewski equations, within a macro-spin approximation, we study the microwave signal generation as a function of drive current for two realistic tilt angles. The tilt magnetization of the fixed layer can be achieved by using a material with high out-of-plane magnetocrystalline anisotropy, such as L10 FePt.

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