Magnetic anisotropy and magnetic properties of RTSi (R = Gd, Y; T = Mn, Fe) compounds

被引：13

作者：

Nikitin, SA ^{[1
]}

Ivanova, TI ^{[1
]}

Tskhadadze, IA ^{[1
]}

Skokov, KP ^{[1
]}

Telegina, IV ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119899, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 280卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

ternary rare earth silicides; magnetic properties; magnetic anisotropy;

D O I：

10.1016/S0925-8388(98)00661-6

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：

Magnetic properties of GdxY1-xMnSi and GdMnxFe1-xSi compounds with CeFeSi-type structure have been studied by magnetization measurements in the temperature range 77-600 K in static magnetic fields up to 12, kOe. The measurements for some compounds have been carried out on single crystal samples. The easy magnetization direction of all single crystal samples was found to be the c axis. The value of the anisotropy constant K-1 for GdMnSi was estimated to be 2.0.10(6) erg cm(-3) at 77 K. The substitution in both rare earth and 3d sublattices leads to a sharp increase in magnetic anisotropy of these compounds. The concentration dependencies of magnetic ordering temperatures, effective magnetic moments and paramagnetic Curie temperatures have been determined. The obtained results can be explained by the modification of the band structure due to the change of interatomic distances and the filling of 3d band. (C) 1998 Published by Elsevier Science S.A. All rights reserved.

引用

页码：16 / 19

页数：4

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