Magnetic and electronic properties of nanocrystalline Gd3Fe5O12 garnet

被引：17

作者：

Lassri, H. ^{[3
]}

Hlil, E. K. ^{[1
,2
]}

Prasad, S. ^{[4
]}

Krishnan, R. ^{[5
]}

机构：

[1] CNRS, Inst Neel, F-38042 Grenoble 9, France

[2] Univ Grenoble 1, F-38042 Grenoble 9, France

[3] Univ Hassan II Ain Chock, LPMMAT, Fac Sci, Casablanca, Morocco

[4] Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India

[5] Univ Versailles St Quentin, CNRS, Grp Etud Mat Condensee, F-78035 Versailles, France

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2011年 / 184卷 / 12期

关键词：

Nanocrystalline garnet; Magnetization; Local random anisotropy; DOS; Moment magnetic; Spin density; IRON-GARNET;

D O I：

10.1016/j.jssc.2011.09.034

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The Gd3Fe5O12 nanocrystalline Gadolinium Iron Garnet (GdIG) obtained from a sintered block was milled in a high energy ball mill. We measured the magnetization at 5 K under applied fields up to 12 T. We report here our study of approach to saturation magnetization. The results have been interpreted within the framework of random anisotropy model. From an analysis of the approach to saturation magnetization some fundamental parameters have been extracted. We have determined the anisotropy field H-r and the local magnetic anisotropy constant K-L. In addition, first-principles spin-density functional calculations, using the Full potential Linear Augmented Plane Waves (FLAPW) method are performed to investigate electronic and magnetic structures. All computed parameters are discussed and compared to available experimental data. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：3216 / 3220

页数：5

共 18 条

[1] FULL-POTENTIAL, LINEARIZED AUGMENTED PLANE-WAVE PROGRAMS FOR CRYSTALLINE SYSTEMS [J].