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Magnetic structure of the magnetocaloric compound AlFe2B2
- 1.0458221 - ÚJF 2017 RIV CH eng J - Journal Article
Cedervall, J. - Andersson, M. S. - Sarkar, T. - Delczeg-Czirjak, E. K. - Bergqvist, L. - Hansen, T. C. - Beran, Přemysl - Nordblad, P. - Sahlberg, M.
Magnetic structure of the magnetocaloric compound AlFe2B2.
Journal of Alloys and Compounds. Roč. 664, APR (2016), s. 784-791. ISSN 0925-8388. E-ISSN 1873-4669
Institutional support: RVO:61389005
Keywords : X-ray diffraction * neutron diffraction * magnetic structure
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 3.133, year: 2016
The crystal and magnetic structures of AlFe2B2 have been studied with a combination of X-ray and neutron diffraction and electronic structure calculations. The magnetic and magnetocaloric properties have been investigated by magnetisation measurements. The samples have been produced using high temperature synthesis and subsequent heat treatments. The compound crystallises in the orthorhombic crystal system Cmmm and it orders ferromagnetically at 285 K through a second order phase transition. At temperatures below the magnetic transition the magnetic moments align along the crystallographic a-axis. The magnetic entropy change from 0 to 800 kA/m was found to be - 1.3 J/K kg at the magnetic transition temperature.
Permanent Link: http://hdl.handle.net/11104/0258496
Number of the records: 1