GD3+-ESR AND MAGNETIC-SUSCEPTIBILITY OF GDCU4AL8 AND GDMN4AL8

被引：6

作者：

COLDEA, R

COLDEA, M

POP, I

机构：

[1] Babes-Bolyai University, Department of Physics

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1994年 / 30卷 / 02期

关键词：

D O I：

10.1109/20.312425

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Gd ESR of GdCu4Als and GdNn4Als and magnetic susceptibility of GdCu4Al8, GdMn4Al8, and YMn4Al8 were measured in the temperature range of 2901-460K and 901-1050K, respectively. The occurrence of the Mn moment in YMn4Al8 and GdMn4Al8 is strongly correlated with the critical value of d almost-equal-to 2.6 angstrom of the Mn-Mn distance below which the Mn moment is not stable. The experimental data for GdMn4Al8, compared with the data for the isostructural compounds GdCu4Al8 and YMn4Al8, show that near the critical value of d, the existence of Mn moment depends not only on the value of d, but also on the local magnetic surroundings. It has been revealed that the magnetic character of Mn moment in YMn4Al8 and GdMn4Al8 changes from an itinerant electron type to a local-moment type with increasing temperature.

引用

页码：852 / 854

页数：3

共 10 条

[1] MAGNETIC-ORDERING IN TERNARY RARE-EARTH IRON ALUMINUM COMPOUNDS (RFE4AL8) [J].