Crystal structure and magnetic properties of the intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn)

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	Crystal structure and magnetic properties of the intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn); Crystal structure and magnetic properties of the intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn)
	Q. L. Liu; J. K. Liang; F. Huang; Y. Chen; G. H. Rao; X. L. Chen; B. G. Shen
	1999 ; 1999
发表期刊	Journal of Physics-Condensed Matter ; Journal of Physics-Condensed Matter
ISSN	0953-8984 ; 0953-8984
卷号	11 期号:48 页码:9797-9805
摘要	Novel ternary intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn) with Th2Zn17-type structure were synthesized and their homogeneous ranges were determined: 0.3 less than or equal to x less than or equal to 0.6 for Nb, 0.6 less than or equal to x less than or equal to 1.2 for Mo and 1.0 less than or equal to x less than or equal to 4.0 for Mn. The lattice parameters and the unit-cell volume increase with increasing x in all of the systems. The preferential occupancy of 6c crystallographic positions (dumb-bell sites) and the stabilization of these compounds by M atoms are attributed to the atomic-size and enthalpy effects. These compounds exhibit favourable uniaxial anisotropy with M content x greater than or equal to 0.5. The Curie temperature decreases monotonically with increasing x for all of the systems. The saturation moment , decreases rapidly with increasing x for M = Mo and Nb. In the La2Co17-xMnx system, mu(s) increases slightly with x for x less than or equal to 2.5 and then decreases for x > 2.5.; Novel ternary intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn) with Th2Zn17-type structure were synthesized and their homogeneous ranges were determined: 0.3 less than or equal to x less than or equal to 0.6 for Nb, 0.6 less than or equal to x less than or equal to 1.2 for Mo and 1.0 less than or equal to x less than or equal to 4.0 for Mn. The lattice parameters and the unit-cell volume increase with increasing x in all of the systems. The preferential occupancy of 6c crystallographic positions (dumb-bell sites) and the stabilization of these compounds by M atoms are attributed to the atomic-size and enthalpy effects. These compounds exhibit favourable uniaxial anisotropy with M content x greater than or equal to 0.5. The Curie temperature decreases monotonically with increasing x for all of the systems. The saturation moment , decreases rapidly with increasing x for M = Mo and Nb. In the La2Co17-xMnx system, mu(s) increases slightly with x for x less than or equal to 2.5 and then decreases for x > 2.5.
部门归属	chinese acad sci, inst phys, state key lab magnetism, beijing 100080, peoples r china. chinese acad sci, ctr condensed matter phys, beijing 100080, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;liu, ql (reprint author), chinese acad sci, inst phys, state key lab magnetism, pob 603-27, beijing 100080, peoples r china ; chinese acad sci, inst phys, state key lab magnetism, beijing 100080, peoples r china. chinese acad sci, ctr condensed matter phys, beijing 100080, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;liu, ql (reprint author), chinese acad sci, inst phys, state key lab magnetism, pob 603-27, beijing 100080, peoples r china
关键词	Uniaxial Magnetocrystalline Anisotropy Uniaxial Magnetocrystalline Anisotropy Permanent-magnets Permanent-magnets Nd Nd Fe Fe Phase Phase Pr Pr Gd Gd
URL	查看原文 ; 查看原文
WOS记录号	WOS:000084251100042 ; WOS:000084251100042
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37427
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. L. Liu,J. K. Liang,F. Huang,et al. Crystal structure and magnetic properties of the intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn), Crystal structure and magnetic properties of the intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn)[J]. Journal of Physics-Condensed Matter, Journal of Physics-Condensed Matter,1999, 1999,11, 11(48):9797-9805, 9797-9805.
APA	Q. L. Liu.,J. K. Liang.,F. Huang.,Y. Chen.,G. H. Rao.,...&B. G. Shen.(1999).Crystal structure and magnetic properties of the intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn).Journal of Physics-Condensed Matter,11(48),9797-9805.
MLA	Q. L. Liu,et al."Crystal structure and magnetic properties of the intermetallic compounds La2Co17-xMx (M = Nb, Mo, Mn)".Journal of Physics-Condensed Matter 11.48(1999):9797-9805.