| 赝二元化合物Dy(Fe0.9M0.1)2(M=B,Al,Ga)的磁性研究 |
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| 引用本文： | 钟文定,兰健,刘尊孝.赝二元化合物Dy(Fe0.9M0.1)2(M=B,Al,Ga)的磁性研究[J].物理学报,1988,37(4):645-649. |
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| 作者姓名： | 钟文定 兰健 刘尊孝 |
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| 作者单位： | 北京大学物理系 |
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| 基金项目： | 国家自然科学基金部分资助的课题 |
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| 摘 要： | 研究了赝二元化合物Dy(Fe0.9M0.1)2(M=B,Al,Ga)的磁性。M对Fe的置换,使居里温度下降,Fe原子的磁矩改变。矫顽力随温度的降低,增加很快,增加的幅度与M有关。磁化强度的温度关系,在磁场小于临界值时,出现反常和热磁效应。用Fe原子局域环境的变迁和低温下内禀磁硬度的急剧增加,解释了上述现象。
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| 收稿时间： | 5/4/1987 12:00:00 AM |
MAGNETIC STUDY OF THE PSEUDOBINARY Dy(Fe0.9M0.1)2 (M= B, Al, Ga) COMPOUNDS |
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| ZHONG WEN-DING,LAN JIAN and LIU ZUN-XIAO.MAGNETIC STUDY OF THE PSEUDOBINARY Dy(Fe0.9M0.1)2 (M= B, Al, Ga) COMPOUNDS[J].Acta Physica Sinica,1988,37(4):645-649. |
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| Authors: | ZHONG WEN-DING LAN JIAN and LIU ZUN-XIAO |
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| Abstract: | The magnetic properties of the pseudobinary compounds Dy (Fe0.9M0.1)2 (M = B, Al, Ga) have been studied. Substitution of M atoms for Fe atoms decreases the Curie temperature and varies the magnetic moment of the Fe atom. The coercivity of the samples increases very rapidly with decreasing temperature. This increase is considerably enhanced by the substitution elements. Anomalous phenomena and pronounced thermomagnetic history effects are observed in the temperature dependence of the magnetization. These effects may be explained by a local environment of iron atom and by an exponential increase in magnetic hardness on lowering the temperature. |
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