Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf)

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	Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf)
	Luo, J ; Liang, JK ; Guo, YQ ; Liu, QL ; Liu, FS ; Zhang, Y ; Yang, LT ; Rao, GH
刊名	INTERMETALLICS
	2005
卷号	13 期号:7 页码:710
关键词	PERMANENT-MAGNETS INTRINSIC-COERCIVITY ALLOYS SUBSTITUTION ND SM ANISOTROPY X=0-0.8 HEAT BASE
ISSN号	0966-9795
通讯作者	Liang, JK: Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	The crystal structure and magnetic properties of Sm(CO,M)(7) (M = Si, Cu, Ti, Zr, and Hf) compounds with the TbCu7-type structure have been investigated by means of X-ray powder diffraction and magnetic measurements. For the Sm(Co,M)(7) compounds, the formation of the compound is dominated by the enthalpy of formation of Mco(7), atomic radius ratio of Sm to (Co, M) and the electronic configuration of the doping element M, while the site occupation of M is determined by the enthalpies of solution of M in liquid Sm and Co as well as by the electronegativity difference among M, Sm and Co. However, the Sm(Co,Cu)(7) compounds exhibit different stabilizing mechanism, which may be due to the large mutual solubility between Co and Cu in the Sm(Co,Cu)(7). The stabilizing element Si and Cu prefer to occupy the 3g site, whereas Ti, Zr and Hf have preference to occupy the 2e site. Both the saturation magnetization and Curie temperature of the Sm(Co,M)(7) compounds decrease with increasing M content, while the magnetic anisotropy increases with increasing M content. The magnetic anisotropy field is related closely to the content and site occupation of the doping element M, which agrees with the theoretical analysis based on the individual site contribution model. (c) 2004 Published by Elsevier Ltd.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/36826]
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	Luo, J,Liang, JK,Guo, YQ,et al. Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf)[J]. INTERMETALLICS,2005,13(7):710.
APA	Luo, J.,Liang, JK.,Guo, YQ.,Liu, QL.,Liu, FS.,...&Rao, GH.(2005).Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf).INTERMETALLICS,13(7),710.
MLA	Luo, J,et al."Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf)".INTERMETALLICS 13.7(2005):710.