Crystal structure and magnetic properties of Nd1-xYxCo6.8Zr0.2 compounds
文献类型:期刊论文
作者 | J. Luo ; J. K. Liang ; Q. L. Liu ; F. S. Liu ; Y. Zhang ; L. T. Yang ; Y. Q. Guo ; G. H. Rao |
刊名 | Journal of Alloys and Compounds
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出版日期 | 2005 |
卷号 | 394期号:1-2页码:69-74 |
关键词 | magnetically ordered materials X-ray scattering spin reorientation spin-reorientation rare-earth exchange interactions thermal-expansion single-crystal ndco5 temperature cu alloys gd |
ISSN号 | 0925-8388 |
中文摘要 | The Nd-1-xYxCo6.8Zr0.2 compounds with x = 0-1.0 have been investigated by means of X-ray powder diffraction and magnetic measurements. The as-cast Nd1-xYxCo6.8Zr0.2 compounds crystallize in the hexagonal TbCU7-type structure with the space group P61mmm. The lattice parameters a, c and the cell volume V decrease linearly with the Y content. The saturation moment per formula unit decreases almost linearly with the Y content. However, the saturation moment of per Co atom increases with the Y content, reaches a maximum value at about x = 0.5, then decreases with increasing content of Y The Curie temperature and the magnetic anisotropy field of the compounds increase with the Y content. The increase of the Curie temperature is mainly related to the increase of the Co-Co exchange interaction due to the volume reduction effect. The Nd1-xYxCo6.8Zr0.2 Compounds with x = 0-0.8 show basal plane anisotropy at 5 K, but show basal plane (x = 0) or c-axis (x = 0.2-0.8) anisotropy at room temperature. The Nd1-xYxCo6.8Zr0.2 compound with x = 1.0 shows c-axis magnetic anisotropy at both 5 K and room temperature. A spin reorientation transition has been found in the Nd1-xYxCo6.8Zr0.2 compounds and the SR temperature decreases with the Y content. (c) 2004 Elsevier B. V. All rights reserved. |
原文出处 | |
公开日期 | 2012-04-14 |
源URL | [http://ir.imr.ac.cn/handle/321006/34969] ![]() |
专题 | 金属研究所_中国科学院金属研究所 |
推荐引用方式 GB/T 7714 | J. Luo,J. K. Liang,Q. L. Liu,et al. Crystal structure and magnetic properties of Nd1-xYxCo6.8Zr0.2 compounds[J]. Journal of Alloys and Compounds,2005,394(1-2):69-74. |
APA | J. Luo.,J. K. Liang.,Q. L. Liu.,F. S. Liu.,Y. Zhang.,...&G. H. Rao.(2005).Crystal structure and magnetic properties of Nd1-xYxCo6.8Zr0.2 compounds.Journal of Alloys and Compounds,394(1-2),69-74. |
MLA | J. Luo,et al."Crystal structure and magnetic properties of Nd1-xYxCo6.8Zr0.2 compounds".Journal of Alloys and Compounds 394.1-2(2005):69-74. |
入库方式: OAI收割
来源:金属研究所
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