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Attempt Frequency of Magnetization in Synthetic Antiferromagnet
서홍주(Hong-Ju Sur),이경진(Kyung-Jin Lee) 한국자기학회 2009 韓國磁氣學會誌 Vol.19 No.1
Solving the stochastic Landau-Lifshitz-Gilbert equation numerically, we investigate the attempt frequency of magnetization in synthetic antiferromagnet (SyAF). The attempt frequency is estimated while varying the uniaxial anisotropy constant, the energy barrier and the geometry of a magnetic layer. It is found that the attempt frequency is decreased for the same magnetic volume by increasing the asymmetry of the geometry in the high damping region. Also, even for a constant height of energy barrier, the attempt frequency can vary dramatically with uniaxial anisotropy constant.