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Local atomic structure around Mn ions in GaN:Mn thin films: Quantitative XANES analysis

Smolentsev, Nikolay ; Smolentsev, Grigory LU ; Wei, Shiqiang and Soldatov, Alexander V. (2011) In Physica B: Condensed Matter 406(14). p.2843-2846
Abstract
GaN:Mn dilute magnetic semiconductors with zinc-blende type of lattice and room temperature ferromagnetism were investigated by the X-ray absorption near edge structure (XANES) with a high accuracy approach of the multidimensional interpolation, which makes it possible to determine the nanoscale local atomic structure around Mn impurities. It is found that Mn atoms are substantially incorporated into the GaN lattice and Jahn-Teller distortion around Mn atom is observed. Our results show that symmetry changes around Mn atom influence on XANES spectrum significantly. Furthermore, the possible impact of local distortions on the magnetic properties is discussed. (C) 2011 Elsevier B.V. All rights reserved.
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
X-ray absorption spectroscopy, XANES, GaN:Mn, semiconductors, FitIt, Jahn-Teller distortion
in
Physica B: Condensed Matter
volume
406
issue
14
pages
2843 - 2846
publisher
Elsevier
external identifiers
  • wos:000292302400026
  • scopus:79957720838
ISSN
0921-4526
DOI
10.1016/j.physb.2011.04.041
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
id
fe550f97-f957-481c-9d8a-6a89ae40409e (old id 2032220)
date added to LUP
2016-04-01 14:48:45
date last changed
2021-09-29 05:13:09
@article{fe550f97-f957-481c-9d8a-6a89ae40409e,
  abstract     = {GaN:Mn dilute magnetic semiconductors with zinc-blende type of lattice and room temperature ferromagnetism were investigated by the X-ray absorption near edge structure (XANES) with a high accuracy approach of the multidimensional interpolation, which makes it possible to determine the nanoscale local atomic structure around Mn impurities. It is found that Mn atoms are substantially incorporated into the GaN lattice and Jahn-Teller distortion around Mn atom is observed. Our results show that symmetry changes around Mn atom influence on XANES spectrum significantly. Furthermore, the possible impact of local distortions on the magnetic properties is discussed. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Smolentsev, Nikolay and Smolentsev, Grigory and Wei, Shiqiang and Soldatov, Alexander V.},
  issn         = {0921-4526},
  language     = {eng},
  number       = {14},
  pages        = {2843--2846},
  publisher    = {Elsevier},
  series       = {Physica B: Condensed Matter},
  title        = {Local atomic structure around Mn ions in GaN:Mn thin films: Quantitative XANES analysis},
  url          = {http://dx.doi.org/10.1016/j.physb.2011.04.041},
  doi          = {10.1016/j.physb.2011.04.041},
  volume       = {406},
  year         = {2011},
}