Proximity induced enhancement of the Curie temperature in hybrid spin injection devices

We investigate the increase of the Curie temperature TC in a lateral spin injection geometry where the ferromagnetic (Ga,Mn)As injector and detector contacts are capped by a thin iron film. Because of interlayer coupling between Fe and (Ga,Mn)As TC gets enhanced by nearly 100% for the thinnest (Ga,M...

Full description

Bibliographic Details
Main Authors: Song, C. (Author), Sperl, M. (Author), Utz, M. (Author), Ciorga, M. (Author), Woltersdorf, G. (Author), Schuh, D. (Author), Bougeard, D. (Author), Back, C. (Author), Weiss, D. (Author)
Format: Article
Language:English
Published: 2011-07-26.
Subjects:
Online Access:Get fulltext
Description
Summary:We investigate the increase of the Curie temperature TC in a lateral spin injection geometry where the ferromagnetic (Ga,Mn)As injector and detector contacts are capped by a thin iron film. Because of interlayer coupling between Fe and (Ga,Mn)As TC gets enhanced by nearly 100% for the thinnest (Ga,Mn)As films. The use of the proximity effect might pave the way for practical implementation of spintronic devices