Physics – Condensed Matter – Materials Science
Scientific paper
2008-04-26
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.
Akerman Johan
Bonetti Stefano
Persson Jonas
Zha C. L.
Zhou Yanhua
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