Temperature-Dependent Magnetic Properties of Fe-Pt Nanoparticles(Magnetic and Magneto-Optical Recording Materials)
スポンサーリンク
概要
- 論文の詳細を見る
This project investigated the temperature dependence of the magnetization and anisotropy field of Fe-Pt nanoparticle samples with different order parameters and compositions. A decrease in the order parameter and/or deviation from equiatomic composition brings about a rapid reduction in the magnetization and anisotropy field with increasing temperature. The temperature dependence of the magnetic properties was found to be associated with the probability of Fe atoms being in Ll_0 type atomic arrangement, which was obtained using Mossbauer spectroscopy, rather than with the order parameter. The changes in magnetization and anisotropy field correlated with each other and demonstrated a qualitative relationship in agreement with a theory based on magnetic thermal fluctuation.
- 社団法人日本磁気学会の論文
- 2004-11-01
著者
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Taniyama T.
Tokyo Inst. Tech.
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Taniyama T.
Materials And Structures Laboratory Tokyo Institute Of Technology
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SAKUMA H.
Research Division of Functional Materials Design, Utsunomiya University
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Sakuma H.
Utsunomiya University
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Kitamoto Y.
Tokyo Institute of Technology
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Nishio H.
Meiji University
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Yamamoto H.
Meiji University
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Ishii K.
Utsunomiya University
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Yamazaki Y.
Tokyo Institute of Technology
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Sakuma H.
Research Division Of Functional Materials Design Utsunomiya University
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Nishio H
Meiji University
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