| TbyDy1-y(Fe1-xTx)2(T=Al,Mn)的磁致伸缩与内禀磁致伸缩特性 |
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| 引用本文： | 李养贤,曲静萍,王博文,徐桂芝,于 慧,杨庆新,颜威利,吴光恒,王敬华,唐成春,詹文山.TbyDy1-y(Fe1-xTx)2(T=Al,Mn)的磁致伸缩与内禀磁致伸缩特性[J].物理学报,1999,48(13):257-262. |
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| 作者姓名： | 李养贤 曲静萍 王博文 徐桂芝 于 慧 杨庆新 颜威利 吴光恒 王敬华 唐成春 詹文山 |
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| 作者单位： | (1)河北工业大学材料工程系，天津 300130; (2)中国科学院物理研究所磁学国家重点实验室，北京 100080 |
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| 摘 要： | 用直拉单晶生长系统制备TbyDy1-x(Fe1-xTx)2(T=Al,Mn)单晶，并测量其磁致伸缩.用电弧炉合成多晶TbyDy1-y(Fe1-xTx)2(T=Al,Mn)，并用X射线衍射方法测量拟合得到内禀磁致伸缩.结果表明，Al和Mn替代后饱和磁场降低，说明Al和Mn的替代明显地降低了各向异性能.随Al和Mn替代量的增加，总的趋势是材料的内禀磁致伸缩λ111降低.对Tb0.5Dy0.5(Fe0.9Mn0.1)2单晶，在不加压情况下的磁致伸缩效果并不明显，但当施加压力时，磁致伸缩变化显著，尤其在12—26MPa压力下，磁致伸缩变化很大，且低场效果很好.
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| 收稿时间： | 1999-06-10 |
Magnetostriction of TbyDy1-y(Fe1-xTx)2(T=Al,Mn) and Their Intrinsic Magnetostrictive Properties |
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| Li Yang Xian,Qu Jing-Ping,Wang Bo-Wen,Xu Gui-Zhi,Yu Hui,Yang Qing-Xin,Yan Wei-Li,Wu Guang-Heng,Wang Jing-Hu,Tang Cheng-Chun and Zhan Wen-Shan.Magnetostriction of TbyDy1-y(Fe1-xTx)2(T=Al,Mn) and Their Intrinsic Magnetostrictive Properties[J].Acta Physica Sinica,1999,48(13):257-262. |
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| Authors: | Li Yang Xian Qu Jing-Ping Wang Bo-Wen Xu Gui-Zhi Yu Hui Yang Qing-Xin Yan Wei-Li Wu Guang-Heng Wang Jing-Hu Tang Cheng-Chun and Zhan Wen-Shan |
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| Abstract: | Magnetostriction of TbyDy1-x(Fe1-xTx)2(T=Al,Mn) single crystals, prepared by the MCGS-3 CZ instrument, was investigated. The intrinsic magnetostrictive properties were derived by fitting method of X-ray diffraction patterns of polycrystal samples prepared by arc-melting method. The substitution of AL, Mn for Fe lowers the saturation field and magnetocrystalline anisotropic energy. The intrinsic magnetostriction, λ111, decreases with increasing amount of Al or Mn. For Tb0.5Dy0.5(Fe0.9Mn0.1)2 single crystals,a large magnetostriction and high d33 can be obtained under the compressive stress of 12—26 MPa. |
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