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Mn diffusion in Ga1-xMnxAs/GaAs superlattices

Mikkelsen, Anders LU ; Ouattara, Lassana LU ; Davidsson, Henrik LU ; Lundgren, Edvin LU ; Sadowski, Janusz LU and Pacherova, O (2004) In Applied Physics Letters 85(20). p.4660-4662
Abstract
Ga1-xMnxAs/GaAs superlattices with Mn concentrations of 1% and 5% in the Ga1-xMnxAs layers and a GaAs spacer thickness of 4 and 60 GaAs monolayers have been studied by cross-sectional scanning tunneling microscopy. By achieving atomic resolution of the superlattices, we observe individual Mn atoms in the Ga1-xMnxAs layers and in the GaAs spacer. We find that about 20% of the total amount of Mn diffuses from the GaMnAs layers into the GaAs spacer layers. Our results can be related to previous measurements of the magnetic properties of short period Ga1-xMnxAs/GaAs superlattices.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
85
issue
20
pages
4660 - 4662
publisher
American Institute of Physics
external identifiers
  • wos:000225166400034
  • scopus:10944229045
ISSN
0003-6951
DOI
10.1063/1.1818338
language
English
LU publication?
yes
id
13e1d891-5ac8-4131-b399-61d564f829f0 (old id 261085)
date added to LUP
2007-10-26 16:42:45
date last changed
2017-07-30 03:54:36
@article{13e1d891-5ac8-4131-b399-61d564f829f0,
  abstract     = {Ga1-xMnxAs/GaAs superlattices with Mn concentrations of 1% and 5% in the Ga1-xMnxAs layers and a GaAs spacer thickness of 4 and 60 GaAs monolayers have been studied by cross-sectional scanning tunneling microscopy. By achieving atomic resolution of the superlattices, we observe individual Mn atoms in the Ga1-xMnxAs layers and in the GaAs spacer. We find that about 20% of the total amount of Mn diffuses from the GaMnAs layers into the GaAs spacer layers. Our results can be related to previous measurements of the magnetic properties of short period Ga1-xMnxAs/GaAs superlattices.},
  author       = {Mikkelsen, Anders and Ouattara, Lassana and Davidsson, Henrik and Lundgren, Edvin and Sadowski, Janusz and Pacherova, O},
  issn         = {0003-6951},
  language     = {eng},
  number       = {20},
  pages        = {4660--4662},
  publisher    = {American Institute of Physics},
  series       = {Applied Physics Letters},
  title        = {Mn diffusion in Ga1-xMnxAs/GaAs superlattices},
  url          = {http://dx.doi.org/10.1063/1.1818338},
  volume       = {85},
  year         = {2004},
}