Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2977474
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- Research and Development for Next-Generation Information Technology of MEXT
- Ministry of Internal Affairs
- Storage Research Consortium in Japan
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Microwave assisted switching of magnetization has become one of the key techniques for future advanced recording. We have studied the magnetization switching behaviors excited by circularly and linearly polarized microwaves based on the Landau-Lifshitz-Gilbert equation. The precessional motion of magnetization is excited by the microwave, resulting in significant reduction of the irreversible reversal field. The reversal takes place through very complicated precessional motion, which proceeds via nearly steady precession at an early stage, subsequent unstable motion, and finally abrupt irreversible switching. We discuss the detailed effect of microwave polarization on magnetization reversals. (C) 2008 American Institute of Physics.
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