Excitation and Imaging of Precessional Modes in Soft-Magnetic Squares
Keatley, Paul Steven
IEEE Transactions on Magnetics
Institute of Electrical and Electronics Engineers (IEEE)
We investigated the high-frequency modes of 40 mum wide, 160 nm thick Fe 70Co8B12Si10 squares using time-resolved scanning Kerr microscopy. Two modes were identified using pulsed field excitation while the spatial character of the out-of-plane and in-plane magnetization component was investigated using harmonic field excitation. The field dependence of the two modes has been fitted using the Damon-Eshbach model.
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Vol. 44 (11), pp. 3083 - 3086