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Impact of bismuth incorporation into (Ga,Mn)As thin films on their structural and magnetic properties

Levchenko, K.; Andrearczyk, T.; Domagala, J. Z.; Wosinski, T.; Figielski, T. and Sadowski, Janusz LU (2015) 17th International Conference on Extended Defects in Semiconductors (EDS) In Physica Status Solidi C 12(8). p.1152-1155
Abstract
Structural and magnetic properties of thin films of the (Ga,Mn)(Bi,As) quaternary diluted magnetic semiconductor grown by the low-temperature molecular-beam epitaxy technique on GaAs substrates have been investigated. High-resolution X-ray diffraction has been applied to characterize the structural quality and misfit strain in the films. Ferromagnetic Curie temperature and magnetocrystalline anisotropy of the films have been examined by using SQUID magnetometry and low-temperature magneto-transport measurements. Post-growth annealing treatment of the films has been shown to reduce the strain in the films and to enhance their Curie temperature. Significant increase in the magnitude of magneto-transport effects caused by incorporation of a... (More)
Structural and magnetic properties of thin films of the (Ga,Mn)(Bi,As) quaternary diluted magnetic semiconductor grown by the low-temperature molecular-beam epitaxy technique on GaAs substrates have been investigated. High-resolution X-ray diffraction has been applied to characterize the structural quality and misfit strain in the films. Ferromagnetic Curie temperature and magnetocrystalline anisotropy of the films have been examined by using SQUID magnetometry and low-temperature magneto-transport measurements. Post-growth annealing treatment of the films has been shown to reduce the strain in the films and to enhance their Curie temperature. Significant increase in the magnitude of magneto-transport effects caused by incorporation of a small amount of Bi into the films is interpreted as a result of enhanced spinorbit coupling in the (Ga, Mn)(Bi, As) films. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Mn)(Bi, As), (Ga, magnetic semiconductors, thin films, magneto-resistance, high-resolution, X-ray diffraction
in
Physica Status Solidi C
volume
12
issue
8
pages
1152 - 1155
publisher
Wiley-Blackwell
conference name
17th International Conference on Extended Defects in Semiconductors (EDS)
external identifiers
  • wos:000360155700021
  • scopus:84939653641
ISSN
1862-6351
1610-1642
DOI
10.1002/pssc.201400219
language
English
LU publication?
yes
id
125d912b-c27d-43c1-b52f-e1d557e2f5ef (old id 7972388)
date added to LUP
2015-09-23 13:15:37
date last changed
2017-03-05 03:16:22
@inproceedings{125d912b-c27d-43c1-b52f-e1d557e2f5ef,
  abstract     = {Structural and magnetic properties of thin films of the (Ga,Mn)(Bi,As) quaternary diluted magnetic semiconductor grown by the low-temperature molecular-beam epitaxy technique on GaAs substrates have been investigated. High-resolution X-ray diffraction has been applied to characterize the structural quality and misfit strain in the films. Ferromagnetic Curie temperature and magnetocrystalline anisotropy of the films have been examined by using SQUID magnetometry and low-temperature magneto-transport measurements. Post-growth annealing treatment of the films has been shown to reduce the strain in the films and to enhance their Curie temperature. Significant increase in the magnitude of magneto-transport effects caused by incorporation of a small amount of Bi into the films is interpreted as a result of enhanced spinorbit coupling in the (Ga, Mn)(Bi, As) films. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim},
  author       = {Levchenko, K. and Andrearczyk, T. and Domagala, J. Z. and Wosinski, T. and Figielski, T. and Sadowski, Janusz},
  booktitle    = {Physica Status Solidi C},
  issn         = {1862-6351},
  keyword      = {Mn)(Bi,As),(Ga,magnetic semiconductors,thin films,magneto-resistance,high-resolution,X-ray diffraction},
  language     = {eng},
  number       = {8},
  pages        = {1152--1155},
  publisher    = {Wiley-Blackwell},
  title        = {Impact of bismuth incorporation into (Ga,Mn)As thin films on their structural and magnetic properties},
  url          = {http://dx.doi.org/10.1002/pssc.201400219},
  volume       = {12},
  year         = {2015},
}