Advanced

MnSb inclusions in the GaSb matrix studied by X-ray absorption spectroscopy

Wolska, A.; Klepka, M. T.; Lawniczak-Jablonska, K.; Sadowski, Janusz LU ; Reszka, A. and Kowalski, B. J. (2011) 10th International School and Symposium on Synchrotron Radiation in Natural Science (ISSRNS) In Radiation Physics and Chemistry 80(10). p.1026-1030
Abstract
The MBE processes were performed in order to form the MnSb inclusions. Two kinds of substrates (GaSb and GaAs) as well as growth temperatures (450 and 520 degrees C) were examined. SEM imaging was performed to determine the shape and size of formed inclusions. In all the samples the inclusions of few hundred nm were formed. Their shapes depended strongly on the type of substrate while the size slightly increases with the growth temperature. The X-ray absorption techniques were used to monitor the local structure around Mn atoms and confirmed that the neighborhood of Mn atoms in the layers was close to that of the MnSb reference powder. We succeed in the formation of the GaSb layers with Mn assembled only into MnSb inclusions on both types... (More)
The MBE processes were performed in order to form the MnSb inclusions. Two kinds of substrates (GaSb and GaAs) as well as growth temperatures (450 and 520 degrees C) were examined. SEM imaging was performed to determine the shape and size of formed inclusions. In all the samples the inclusions of few hundred nm were formed. Their shapes depended strongly on the type of substrate while the size slightly increases with the growth temperature. The X-ray absorption techniques were used to monitor the local structure around Mn atoms and confirmed that the neighborhood of Mn atoms in the layers was close to that of the MnSb reference powder. We succeed in the formation of the GaSb layers with Mn assembled only into MnSb inclusions on both types of substrates: GaAs(1 1 1)A and GaSb(1 00). However, in case of the GaAs(1 1 1)A substrates, the atomic order around Mn atoms in MnSb inclusions is less perfect than in case of the GaSb(1 0 0) substrates. (C) 2011 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
MnSb inclusions, MBE growth, EXAFS, SEM, Room temperature ferromagnetism
in
Radiation Physics and Chemistry
volume
80
issue
10
pages
1026 - 1030
publisher
Elsevier
conference name
10th International School and Symposium on Synchrotron Radiation in Natural Science (ISSRNS)
external identifiers
  • wos:000293424000006
  • scopus:79960281864
ISSN
0969-806X
DOI
10.1016/j.radphyschem.2011.02.015
language
English
LU publication?
yes
id
1703a069-f8c3-4e54-b638-dbd8cd649867 (old id 2065307)
date added to LUP
2011-08-29 17:36:50
date last changed
2017-01-01 05:46:23
@inproceedings{1703a069-f8c3-4e54-b638-dbd8cd649867,
  abstract     = {The MBE processes were performed in order to form the MnSb inclusions. Two kinds of substrates (GaSb and GaAs) as well as growth temperatures (450 and 520 degrees C) were examined. SEM imaging was performed to determine the shape and size of formed inclusions. In all the samples the inclusions of few hundred nm were formed. Their shapes depended strongly on the type of substrate while the size slightly increases with the growth temperature. The X-ray absorption techniques were used to monitor the local structure around Mn atoms and confirmed that the neighborhood of Mn atoms in the layers was close to that of the MnSb reference powder. We succeed in the formation of the GaSb layers with Mn assembled only into MnSb inclusions on both types of substrates: GaAs(1 1 1)A and GaSb(1 00). However, in case of the GaAs(1 1 1)A substrates, the atomic order around Mn atoms in MnSb inclusions is less perfect than in case of the GaSb(1 0 0) substrates. (C) 2011 Elsevier Ltd. All rights reserved.},
  author       = {Wolska, A. and Klepka, M. T. and Lawniczak-Jablonska, K. and Sadowski, Janusz and Reszka, A. and Kowalski, B. J.},
  booktitle    = {Radiation Physics and Chemistry},
  issn         = {0969-806X},
  keyword      = {MnSb inclusions,MBE growth,EXAFS,SEM,Room temperature ferromagnetism},
  language     = {eng},
  number       = {10},
  pages        = {1026--1030},
  publisher    = {Elsevier},
  title        = {MnSb inclusions in the GaSb matrix studied by X-ray absorption spectroscopy},
  url          = {http://dx.doi.org/10.1016/j.radphyschem.2011.02.015},
  volume       = {80},
  year         = {2011},
}