Neutron diffraction study on hp 13 type M7-xMnxGe6 (M = Co, Fe)

被引：6
|
作者：
Hori, T [1 ]
Tuchiya, Y
Funahashi, S
Akimitsu, M
Shimojo, Y
Shiraishi, H
Nakagawa, Y
机构：
[1] Shibaura Inst Technol, Dept Elect Informat Syst, Oomiya, Saitama 330, Japan
[2] Japan Atom Energy Res Inst, Tokai, Ibaraki 31911, Japan
[3] Tohoku Inst Technol, Sendai, Miyagi 982, Japan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1998年 / 177卷
关键词：
antiferromagnetism; magnetic structure; neutron diffraction;
D O I：
10.1016/S0304-8853(97)00463-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have made neutron diffraction experiments for Fe7-xMnxGe6 with x = 2 and 4 and CO7-xMnxGe6 with x = 3.25, which have the hexagonal hp 13-type structure. It is determined by the Rietvelt analysis for the nuclear reflection that the 1T(1) site is entirely occupied by Mn atoms and the 6T(2) site by Fe or Co atoms and excess Mn atoms. The magnetic reflection of Fe3Mn4Ge6 corresponds to the collinear antiferromagnetism with alternating ferromagnetic layers in which the magnetic moments of the 1T(1) and 6T(2) sites are 2.5 and 1.8 mu(B)/(Mn or Fe) atom, respectively. Magnetic structures of the other alloys are quite complicated. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：1425 / 1426
页数：2
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