Thermal diffusion of Mn through GaAs overlayers on (Ga, Mn) As
Author
Summary, in English
Thermally stimulated diffusion of Mn through thin layers of GaAs has been studied by x-ray photoemission. (Ga, Mn) As samples with 5 at% Mn were capped with 4, 6 and 8 monolayer (ML) GaAs, and Mn diffusing through the GaAs was trapped on the surface by means of amorphous As. It was found that the out-diffusion is completely suppressed for an 8 ML thick GaAs film. The short diffusion length is attributed to an electrostatic barrier formed at the (Ga, Mn) As/GaAs interface.
Department/s
Publishing year
2011
Language
English
Publication/Series
Journal of Physics: Condensed Matter
Volume
23
Issue
8
Document type
Journal article
Publisher
IOP Publishing
Topic
- Physical Sciences
- Natural Sciences
Status
Published
ISBN/ISSN/Other
- ISSN: 1361-648X