Properties of CoPt ferromagnetic layers for application in spin light-emitting diodes

被引：12
|
作者：
Zdoroveyshchev, A. V. [1 ]
Dorokhin, M. V. [1 ]
Vikhrova, O. V. [1 ]
Demina, P. B. [1 ]
Kudrin, A. V. [1 ]
Temiryazev, A. G. [2 ]
Temiryazeva, M. P. [2 ]
机构：
[1] Lobachevsky State Univ Nizhny Novgorod, Tech Phys Res Inst, Pr Gagarina 23-3, Nizhnii Novgorod 603950, Russia
[2] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Fryazino Branch, Pl Vvedenskogo 1, Fryazino 141190, Moscow Oblast, Russia
来源：
PHYSICS OF THE SOLID STATE | 2016年 / 58卷 / 11期
基金：
俄罗斯基础研究基金会;
关键词：
CRYSTAL; FILMS;
D O I：
10.1134/S1063783416110391
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The magnetic properties of Co45Pt55 films deposited by electron-beam evaporation in vacuum have been studied. The measurements of the Faraday and Kerr magnetooptical effects confirm the presence of the easy-magnetization axis perpendicular to the Co45Pt55 surface. It is shown that the perpendicular magnetic anisotropy and the residual magnetization are retained at 300 K for a long time. The magnetic characteristics of the Co45Pt55 layer surface have been studied by magnetic force microscopy, and "circular" mobile magnetic structures have been detected. The spin light-emitting diodes based on In(Ga)As/GaAs heteronanostructures with Co45Pt55 contact layers were fabricated. These diodes emit circularly-polarized light in the absence of an external magnetic field.
引用
收藏
页码：2267 / 2270
页数：4
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