Proceedings of the Korean Magnestics Society Conference (한국자기학회:학술대회 개요집)
- 2000.09a
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- Pages.200-206
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- 2000
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- 2233-9485(pISSN)
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- 2233-9574(eISSN)
Measurement of activation magnetic moment in ferromagnetic thin films
- Choe, Sug-Bong (Dept. of Physics and Center for Nanospinics of Spintronic Materials, Korea Advanced Institute of Science and Technology) ;
- Shin, Sung-Chul (Dept. of Physics and Center for Nanospinics of Spintronic Materials, Korea Advanced Institute of Science and Technology)
- Published : 2000.09.01
Abstract
We have investigated the activation magnetic moment, which characterizes the basis magnetic moment acting as a single magnetic particle during magnetization reversal. The activation magnetic moment was measured from each local area on continuous ferromagnetic thin films, by analyzing the magnetic field dependence of magnetization reversal of the corresponding local area based on a thermally activated relaxation process. It was found that the activation magnetic moment was nonuniform on submicrometer scale; the fluctuation increased with increasing the number of layers in Co/Pd multilayers. The distribution could be well analyzed by exp(
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