Domain Dynamics Study using Magneto-Optical Microscope Magnetometer (MOMM) with 400-nm Spatial Resolution
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概要
- 論文の詳細を見る
A magneto-optical microscope magnetometer (MOMM) has been developed to grab the domain reversal patterns in real time under applying a magnetic field, as well as, to simultaneously measure the local magnetic ptoperties with 400-nm spatial resolution.Using the system, the domain reversal behavior is revealed to change contrastingly between wall-motion and nucleation dominant with changing the multilayer structure of Co/Pd multilayers.From a quantitative analysis, the reversal ratio of the wall-motion speed over the nucleation rate is a governing parameter for the contrasting domain reversal dynamics.The activation volumes of the wall-motion and nucleation processes are found to be unequal, and the difference is closely ralated with the domain dynamics.Based on a Monte-Carlo simulation, both the macroscopic magnetic properties and the local magnetic variation are responsible for the contrasting domain reversal behavior.
- 社団法人日本磁気学会の論文
- 2001-03-15
著者
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Choe S‐b
Korea Advanced Inst. Sci. And Technol. Taejon Kor
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Sug-Bong Choe
Center for Nanospinics of Spintronic Materials and Department of Physics, Korea Advanced Institute o
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Sung-Chul Shin
Center for Nanospinics of Spintronic Materials and Department of Physics, Korea Advanced Institute o
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Sung-chul Shin
Center For Nanospinics Of Spintronic Materials And Department Of Physics Korea Advanced Institute Of
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Sug-bong Choe
Center For Nanospinics Of Spintronic Materials And Department Of Physics Korea Advanced Institute Of
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Choe Sug-Bong
Center for Nanospinics of Spintronic Materials and Department of Physics, Korea Advanced Institute of Science and Technology
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Shin Sung-Chul
Center for Nanospinics of Spintronic Materials and Department of Physics, Korea Advanced Institute of Science and Technology