Magnetic properties of Mn1-xMxBe2 (M = Co, Ni, Cu) and MnBe2-xMx (M = Cu, B, Al)

被引：1

作者：

Samata, H

Abe, S

Taniguchi, T

Nagata, Y

机构：

[1] Aoyama Gakuin Univ, Coll Sci & Engn, Setagaya Ku, Tokyo 1578572, Japan

[2] Kanagawa Univ, Dept Elect Engn, Kanagawa Ku, Kanagawa 2218686, Japan

[3] Kobe Univ Mercantile Marine, Fac Mercantile Marine Sci, Higashinada Ku, Kobe, Hyogo 6580022, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 343卷 / 1-2期

关键词：

transition metal compounds; magnetically ordered materials; magnetic measurements; X-ray diffraction;

D O I：

10.1016/S0925-8388(02)00144-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The occurrence of ferromagnetism was investigated in the Laves-phase compounds Mn1-xMxBe2 (M=Co, Ni, Cu) and MnBe2-xMx (M=Cu, B, Al) through magnetization measurements. The magnetic susceptibility is enhanced when Mn is replaced by Co and shows a maximum at about x=0.6. Ferromagnetic behavior is observed for specimens with a Co content of 0.3<x<0.9. However, the magnetization does not saturate in high magnetic fields and shows a linear field dependence up to 100 kOe, suggesting the existence of weak ferromagnetism. The results of measurements for the specimens Mn1-xMxBe2 (M = Co, Ni, Cu) have suggested that the number of valence electrons of the transition-metal atoms is important for the occurrence of the weak ferromagnetism. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：47 / 52

页数：6

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