| Fe-Cu-Nb-Si-B纳米晶体软磁材料中有效磁各向异性的测定 |
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| 引用本文： | 何开元,智靖,熊湘沅,程力智.Fe-Cu-Nb-Si-B纳米晶体软磁材料中有效磁各向异性的测定[J].物理学报,1993,42(10):1691-1695. |
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| 作者姓名： | 何开元 智靖 熊湘沅 程力智 |
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| 作者单位： | 东北工学院材料科学与工程系,沈阳110006 |
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| 基金项目： | 国家自然科学基金;中国科学院磁学开放研究实验室基金 |
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| 摘 要： | 研究了成分为Fe73.5Cu1Nb3Si13.5B9的纳米晶体结构的软磁材料的磁各向异性。理论分析及测量结果说明,用趋近饱和的磁化过程可以测定出这种材料中的有效磁各向异性常数,它比晶粒中的磁晶各向异性常数K1约小一个数量级。
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| 关 键 词： | 软磁材料 纳米晶体 磁各向异性 |
| 收稿时间： | 1992-09-17 |
MEASUREMENT OF EFFECTIVE MAGNETIC ANISOTROPY IN NANOCRYSTALLINE Fe-Cu-Nb-Si-B SOFT MAGNETIC MATERIALS |
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| HE KAI,YUAN ZHI-JING,XIONG XIAMG-YUAN and CHENG LI-ZHI.MEASUREMENT OF EFFECTIVE MAGNETIC ANISOTROPY IN NANOCRYSTALLINE Fe-Cu-Nb-Si-B SOFT MAGNETIC MATERIALS[J].Acta Physica Sinica,1993,42(10):1691-1695. |
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| Authors: | HE KAI YUAN ZHI-JING XIONG XIAMG-YUAN and CHENG LI-ZHI |
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| Abstract: | M agnetic anisotropy of a nanocrystalline Fe73.5Cu1Nb3Si13.5B9 soft magnetic alloy was investigated. Theoretical analysis and measurement results show that the effective magnetic anisotropy constant in the nanocrystalline alloys can be measured by means of the process of approaching saturation and the measured value is about one orders of magnitude smaller than the magnetocrystalline anisotropy constant K1 of the α-Fe(Si) grains. |
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