Formation of FeAs and Fe crystallites in GaAs-Fe composite structures and their roles in light-enhanced magnetization

被引：12

作者：

Haneda, S

Koshihara, S

Munekata, H

机构：

[1] Tokyo Inst Technol, Imaging Sci & Engn Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Tokyo Inst Technol, Dept Chem & Mat Sci, Meguro Ku, Tokyo 1528550, Japan

[3] Kanagawa Acad Sci & Technol, Kanagawa, Japan

来源：

PHYSICA E | 2001年 / 10卷 / 1-3期

关键词：

GaAs; iron; granular structures; photo-induced magnetism; molecular beam epitaxy;

D O I：

10.1016/S1386-9477(01)00133-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The model for the light-enhanced magnetization observed in the GaAs-Fe composite structures (S. Haneda ct al., J. Appl. Phys. 87 (2000) 6445.) has been constructed on the basis of studies on the nucleation process of Fe and GaAs, as well as the detail magnetization behavior. We have found that the Fe clusters with the average diameter of 7 +/- 2 Angstrom is responsible for the light-enhanced magnetization. The role of antiferromagnetic FeAs is to magnetically suppress the interaction between the clusters at low temperatures. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：437 / 441

页数：5

共 9 条

[1] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].