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Thermal diffusion of Mn through GaAs overlayers on (Ga, Mn) As

Adell, Johan LU ; Ulfat, I.; Ilver, L.; Sadowski, Janusz LU ; Karlsson, K. and Kanski, J. (2011) In Journal of Physics: Condensed Matter 23(8).
Abstract
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.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics: Condensed Matter
volume
23
issue
8
publisher
IOP Publishing
external identifiers
  • wos:000287235700006
  • scopus:79951797257
ISSN
1361-648X
DOI
10.1088/0953-8984/23/8/085003
language
English
LU publication?
yes
id
f88d0584-2b63-459a-ba74-1fdf9f01c7ce (old id 1877917)
date added to LUP
2011-04-27 09:42:13
date last changed
2017-09-03 04:22:00
@article{f88d0584-2b63-459a-ba74-1fdf9f01c7ce,
  abstract     = {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.},
  author       = {Adell, Johan and Ulfat, I. and Ilver, L. and Sadowski, Janusz and Karlsson, K. and Kanski, J.},
  issn         = {1361-648X},
  language     = {eng},
  number       = {8},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics: Condensed Matter},
  title        = {Thermal diffusion of Mn through GaAs overlayers on (Ga, Mn) As},
  url          = {http://dx.doi.org/10.1088/0953-8984/23/8/085003},
  volume       = {23},
  year         = {2011},
}