| R(Fe1-xNix)11.3Nb0.7化合物的磁性 |
| |
| 引用本文： | 王建立,唐 宁,阳 东,沈宇平,吴光恒,杨伏明,F.R.de Boer.R(Fe1-xNix)11.3Nb0.7化合物的磁性[J].物理学报,1999,48(13):74-79. |
| |
| 作者姓名： | 王建立 唐 宁 阳 东 沈宇平 吴光恒 杨伏明 F.R.de Boer |
| |
| 作者单位： | (1)Van der Waals-Zeeman Institute,University of Amsterdam,1018XE Amsterdam,the Natherlands; (2)中国科学院物理研究所磁学国家重点实验室，北京 100080 |
| |
| 摘 要： | 用X射线衍射和磁测量手段研究了Ni部分替代Fe对具有ThMn12结构的Rfe11.3Nb0.7(R=Gd,Tb,Dy,Ho,Er和Y）化合物的结构与磁性的影响.研究表明，Ni部分替代Fe不改变晶体结构，但引起了晶胞体积收缩.随着Ni含量的增加，居里温度TC迅速上升，而饱和磁化强度Ms则单调减小.Ni部分替代Fe还导致了Fe次晶格的轴各向异性的迅速降低和RF11.3Nb0.7(R=Tb,Dy,Er)化合物中自旋重取向温度Tsr的变化.Tsr与Ni含量的关系用晶场理论给出了定性的解释.
关键词：
|
| 收稿时间： | 1999-05-30 |
Magnetic properties of R(Fe1-xNix)11.3Nb0.7 Compounds |
| |
| Wang Jian-Li,Tang Ning,Yang Dong,Shen Yu-Ping,Wu Guang-Heng,Yang Fu-Ming and F.R.de Boer.Magnetic properties of R(Fe1-xNix)11.3Nb0.7 Compounds[J].Acta Physica Sinica,1999,48(13):74-79. |
| |
| Authors: | Wang Jian-Li Tang Ning Yang Dong Shen Yu-Ping Wu Guang-Heng Yang Fu-Ming and FRde Boer |
| |
| Abstract: | Structure and magnetic properties of R(Fe1-xNix)11.3Nb0.7 (R=Gd, Tb, Dy, Ho, Er and Y) compounds have been studied by means of X-ray diffraction and magnetic measurements. Substitution of Ni for a fraction of Fe does not change the structure of R Fe11.3Nb0.7, but leads to the contraction of the unit cell volume, the rapidly increasing of the Curie temperature and monotonic decreasing of saturation magnetization. It is notable that introduction of Ni leads to the sharply decline of the easy-axis anisotropy of Fe sublattice and the changes of the spin reorientation temperature Tsr of R Fe11.3Nb0.7 (R=Tb, Dy, Er). A qualitative explanation of the relationship of Tsr and Ni content is given based on the theory of crystal field. |
| |
| Keywords: | |
|
| 点击此处可从《物理学报》浏览原始摘要信息 |
|
点击此处可从《物理学报》下载免费的PDF全文 |
|
