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Magnetostructural transition in Fe5SiB2 observed with neutron diffraction

Cedervall, Johan LU ; Kontos, Sofia; Hansen, Thomas C.; Balmes, Olivier LU ; Martinez-Casado, Francisco Javier; Matej, Zdenek LU ; Beran, Premysl; Svedlindh, Peter; Gunnarsson, Klas and Sahlberg, Martin (2016) In Journal of Solid State Chemistry 235. p.113-118
Abstract

The crystal and magnetic structure of Fe5SiB2 has been studied by a combination of X-ray and neutron diffraction. Also, the magnetocrystalline anisotropy energy constant has been estimated from magnetisation measurements. High quality samples have been prepared using high temperature synthesis and subsequent heat treatment protocols. The crystal structure is tetragonal within the space group I4/mcm and the compound behaves ferromagnetically with a Curie temperature of 760 K. At 172 K a spin reorientation occurs in the compound and the magnetic moments go from aligning along the c-axis (high T) down to the ab-plane (low T). The magnetocrystalline anisotropy energy constant has been estimated to 0.3 MJ/m3... (More)

The crystal and magnetic structure of Fe5SiB2 has been studied by a combination of X-ray and neutron diffraction. Also, the magnetocrystalline anisotropy energy constant has been estimated from magnetisation measurements. High quality samples have been prepared using high temperature synthesis and subsequent heat treatment protocols. The crystal structure is tetragonal within the space group I4/mcm and the compound behaves ferromagnetically with a Curie temperature of 760 K. At 172 K a spin reorientation occurs in the compound and the magnetic moments go from aligning along the c-axis (high T) down to the ab-plane (low T). The magnetocrystalline anisotropy energy constant has been estimated to 0.3 MJ/m3 at 300 K.

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author
organization
publishing date
type
Contribution to journal
publication status
published
keywords
Magnetism, Neutron diffraction, Permanent magnet, X-ray diffraction
in
Journal of Solid State Chemistry
volume
235
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:84951793064
  • wos:000370467900017
ISSN
0022-4596
DOI
10.1016/j.jssc.2015.12.016
language
English
LU publication?
yes
id
6f228395-3339-49a8-845f-2aaabd0a61b8
date added to LUP
2017-03-17 22:59:38
date last changed
2017-10-08 05:00:15
@article{6f228395-3339-49a8-845f-2aaabd0a61b8,
  abstract     = {<p>The crystal and magnetic structure of Fe<sub>5</sub>SiB<sub>2</sub> has been studied by a combination of X-ray and neutron diffraction. Also, the magnetocrystalline anisotropy energy constant has been estimated from magnetisation measurements. High quality samples have been prepared using high temperature synthesis and subsequent heat treatment protocols. The crystal structure is tetragonal within the space group I4/mcm and the compound behaves ferromagnetically with a Curie temperature of 760 K. At 172 K a spin reorientation occurs in the compound and the magnetic moments go from aligning along the c-axis (high T) down to the ab-plane (low T). The magnetocrystalline anisotropy energy constant has been estimated to 0.3 MJ/m<sup>3</sup> at 300 K.</p>},
  author       = {Cedervall, Johan and Kontos, Sofia and Hansen, Thomas C. and Balmes, Olivier and Martinez-Casado, Francisco Javier and Matej, Zdenek and Beran, Premysl and Svedlindh, Peter and Gunnarsson, Klas and Sahlberg, Martin},
  issn         = {0022-4596},
  keyword      = {Magnetism,Neutron diffraction,Permanent magnet,X-ray diffraction},
  language     = {eng},
  month        = {03},
  pages        = {113--118},
  publisher    = {Elsevier},
  series       = {Journal of Solid State Chemistry},
  title        = {Magnetostructural transition in Fe<sub>5</sub>SiB<sub>2</sub> observed with neutron diffraction},
  url          = {http://dx.doi.org/10.1016/j.jssc.2015.12.016},
  volume       = {235},
  year         = {2016},
}