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arXiv · 0706.0529

Generation of microwave radiation in planar spin-transfer devices

Ya. B. Bazaliy
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Abstract

Current induced precession states in spin-transfer devices are studied in the case of large easy plane anisotropy (present in most experimental setups). It is shown that the effective one-dimensional planar description provides a simple qualitative understanding of the emergence and evolution of such states. Switching boundaries are found analytically for the collinear device and the spin-flip transistor. The latter can generate microwave oscillations at zero external magnetic field without either special functional form of spin-transfer torque, or ``field-like'' terms, if Gilbert constant corresponds to the overdamped planar regime.

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Ya. B. Bazaliy. 2007-06-04. Generation of microwave radiation in planar spin-transfer devices. https://doi.org/10.1103/physrevb.76.140402

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