STABILITY OF MN MOMENTS AND MAGNETIC-STRUCTURE OF TB1-XSCXMN2, TB1-XYXMN2

被引:9
作者
SHIGA, M
HIROKAWA, J
WADA, H
NAKAMURA, Y
机构
[1] Department of Metal Science and Technology, Kyoto University, Kyoto 606, Sakyo-ku
[2] Device Developing Center, Hitachi Ltd., Ome 198
[3] Department of Mechanical and System Engineering, Faculty of Science and Technology, Ryukoku University, Otsu 520-21, Seta
关键词
Laves phase; magnetic property; manganse; NMR; scandium; terbium; thermal expansion; yttrium;
D O I
10.1143/JPSJ.59.1410
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The effects of substitution of Sc and Y for Tb on the magnetism of TbMn2, which is helimagnetic with a large Mn moment, were investigated by magnetization, thermal expansion and NMR measurements. The substitution of Sc for Tb reduces the lattice constant and collapses the Mn moment, resulting in the change of magnetic structure to ferromagnetism. The signal from nonmagnetic Mn atoms was detected by NMR. The substitution of Y for Tb, which expands the lattice, does not give any drastic change in magnetic properties. Factors of determining the stability of Mn moments and the effects of frustrative magnetic interactions on the magnetic structure are discussed. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.
引用
收藏
页码:1410 / 1420
页数:11
相关论文
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