Structure, exchange interactions and magnetic anisotropy of Ho2Co17-xSix compounds
文献类型：期刊论文
| 作者 | Wang, JY ; Shen, BG ; Zhang, SY ; Zhan, WS ; Zhang, LG |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2000 |
| 卷号 | 87期号:1页码:427 |
| 关键词 | R = Y NEUTRON-DIFFRACTION SOLID-SOLUTIONS INTERMETALLIC COMPOUNDS FIELD DY TB |
| ISSN号 | 0021-8979 |
| 通讯作者 | Wang, JY (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The structural and magnetic characteristics of Ho2Co17-xSix (x=0, 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0) compounds have been investigated by means of x-ray diffraction and magnetic measurements. Powder x-ray diffractograms show that all samples are single phase and have the hexagonal Th2Ni17-type or the rhombohedral Th2Zn17-type structure. The substitution of Si for Co leads to a monotonous decrease in unit cell volume v and Curie temperature T-C. The compensation points are observed for the samples with x=2.5 and 3.0, and the compensation temperatures shift to higher temperatures with increasing Si content. The intersublattice-molecular-field coefficient, n(Ho-Co), has been determined on the basis of magnetization curves at the compensation temperature. It has been found that the Si substitution for Co has little influence on Ho-Co exchange interaction. The magnetic phase diagram has been determined from the temperature dependence of magnetization and the XRD patterns of magnetically oriented powder samples. The spin-reorientation temperatures of Ho2Co17-xSix compounds are found to decrease with Si content for x < 2.5 and then increase for x > 2.5, attaining a minimum value of 237 K at x=2.5. (C) 2000 American Institute of Physics. [S0021-8979(00)04701-0]. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53620]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang, JY,Shen, BG,Zhang, SY,et al. Structure, exchange interactions and magnetic anisotropy of Ho2Co17-xSix compounds[J]. JOURNAL OF APPLIED PHYSICS,2000,87(1):427. |
| APA | Wang, JY,Shen, BG,Zhang, SY,Zhan, WS,&Zhang, LG.(2000).Structure, exchange interactions and magnetic anisotropy of Ho2Co17-xSix compounds.JOURNAL OF APPLIED PHYSICS,87(1),427. |
| MLA | Wang, JY,et al."Structure, exchange interactions and magnetic anisotropy of Ho2Co17-xSix compounds".JOURNAL OF APPLIED PHYSICS 87.1(2000):427. |
入库方式： OAI收割
来源：物理研究所
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