STRUCTURE AND MAGNETIC-PROPERTIES OF R2FE17CX (X APPROXIMATELY 2.5)

被引：66

作者：

LIAO, LX ^{[1
]}

CHEN, X ^{[1
]}

ALTOUNIAN, Z ^{[1
]}

RYAN, DH ^{[1
]}

机构：

[1] MCGILL UNIV,DEPT PHYS,MONTREAL H3A 2T8,QUEBEC,CANADA

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 01期

关键词：

D O I：

10.1063/1.107346

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A series of rare-earth iron carbides were prepared by heat treatment of R2Fe17 compounds in methane. The nominal composition of these carbides is R2Fe17Cx, x approximately 2.5. The carbides retain the original Th2Zn17 or Th2Ni17 Structure with a 6.5% volume expansion over the carbon-free unit cell. For Sm2Fe17C2.5, the Curie temperature is 760 K and the easy magnetization direction is along the c axis. The anisotropy field of Sm2Fe17C2.5 at room temperature is 15 +/- 0.5 T.

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页码：129 / 131

页数：3

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