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JOURNAL OF APPLIED PHYSICS
Volume 105, Issue 7, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.3072075
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Methods of nonlinear-dynamical-system theory are applied to the study of magnetization dynamics under the action of microwave magnetic fields. In the case of a system with uniaxial anisotropy subject to a circularly-polarized microwave field, the conditions are derived under which the magnetization reversal field is substantially reduced by the application of the microwave field. The dependence of magnetization switching on microwave-field-pulse duration is discussed and analytical expressions are derived for the minimum pulse duration leading to switching. (c) 2009 American Institute of Physics. [DOI: 10.1063/1.3072075]
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