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

页码：2267 / 2270

页数：4

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