Structure and magnetic properties of R2Co17-xSix (x = 0-3) compounds with R = Y and Pr
文献类型：期刊论文
| 作者 | Zhang, ZY ; Shen, BG ; Li, RW ; Ruan, XF ; Liang, B ; Zhang, HW ; Wang, FW ; Zhan, WS ; Zhang, LG |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 1998 |
| 卷号 | 10期号:11页码:2445 |
| 关键词 | MAGNETOCRYSTALLINE ANISOTROPY NEUTRON-DIFFRACTION GA-CONCENTRATION SOLID-SOLUTIONS SM2FE17-XSIX SI |
| ISSN号 | 0953-8984 |
| 通讯作者 | Zhang, ZY (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The influence of Si substitution for Co or, the structure and magnetic properties of Y2Co17-xSix and Pr2Co17-xSix (x = 0-3) compounds were investigated by means of x-ray diffraction and magnetization measurements. X-ray diffraction patterns demonstrate that all samples are single phase with the hexagonal Th2Ni17-type structure for Y2Co17-xSix and the rhombohedral Th2Zn17-type structure for Pr2Co17-xSix compounds, except for Pr2Co14Si3 With a small amount of impurity phases. The unit-cell volume is found to decrease linearly with increasing Si concentration in both series. The Curie temperature decreases monotonically with increasing Si concentration at an approximate rate of 205 and 175 K per Si atom for the Y2Co17-xSix and Pr2Co17-xSix compounds, respectively. The saturation magnetic moments of R2Co17-xSix (R = Y, Pr) decrease with increasing Si content and the decline rates are larger than that expected as a simple dilution. For Y2Co17-xSix, the substitution of Si has a significant effect on the magnetocrystalline anisotropy of the Co sublattice, and changes the easy magnetization direction from the basal plane to the c-axis at room temperature. For Pr2Co17-xSix, the Si substitution has not changed the easy magnetization direction at room temperature. However, the spin-reorientation transitions from the basal plane to the c-axis for this series with 0.5 less than or equal to x less than or equal to 2.4 were observed above room temperature with increasing temperature. The spin-reorientation temperature TSR first decreases with increasing Si content and then increases at higher x values (x > 2). The origin of this spin reorientation is interpreted by the competition between the Pr sublattice anisotropy and the Co sublattice anisotropy. This has been confirmed by the magnetocrystalline anisotropy measurements on Y2Co17-xSix. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53482]  |
| 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 | Zhang, ZY,Shen, BG,Li, RW,et al. Structure and magnetic properties of R2Co17-xSix (x = 0-3) compounds with R = Y and Pr[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,1998,10(11):2445. |
| APA | Zhang, ZY.,Shen, BG.,Li, RW.,Ruan, XF.,Liang, B.,...&Zhang, LG.(1998).Structure and magnetic properties of R2Co17-xSix (x = 0-3) compounds with R = Y and Pr.JOURNAL OF PHYSICS-CONDENSED MATTER,10(11),2445. |
| MLA | Zhang, ZY,et al."Structure and magnetic properties of R2Co17-xSix (x = 0-3) compounds with R = Y and Pr".JOURNAL OF PHYSICS-CONDENSED MATTER 10.11(1998):2445. |
入库方式： OAI收割
来源：物理研究所
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