[Zurück]

V. Paul-Boncour, S.M. Filipek, I. Marchuk, G. André, F. Bourée, G. Wiesinger, A. Percheron-Guégan:
"Structural and magnetic properties of ErFe₂D₅ studied by neutron diffraction and Mössbauer spectroscopy";
Journal of Physics: Condensed Matter, 15 (2003), S. 4349 - 4359.

Structural and magnetic properties of ErFe2D5 studied by neutron diffraction and Mössbauer spectroscopy
V Paul-Boncour1,5, S M Filipek2, I Marchuk2, G André3, F Bourée3, G Wiesinger4 and A Percheron-Guégan1
1 Laboratoire de Chimie Métallurgique des Terres Rares, CNRS, 2-8 rue H Dunant, 94320 Thiais, France
2 Institute of Polish Chemistry PAN, Ulica Kasprzaka 44/52, 01224 Warsaw, Poland
3 Laboratoire Léon Brillouin, CEA-CNRS, CEA/Saclay, 91191 Gif/Yvette, France
4 Institute for Solid State Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10/131, A-1040 Vienna, Austria

E-mail: paulbon@glvt-cnrs.fr
5 Author to whom any correspondence should be addressed.

Received 18 March 2003, in final form 22 May 2003
Published 13 June 2003

Abstract. A neutron powder diffraction study of ErFe2D5, synthesized under 1 GPa hydrogen pressure, shows that it crystallizes at room temperature in an orthorhombic structure described by the Pmn21 space group with a = 5.42 Å, b = 5.79 Å, c = 8.00 Å. The deuterium atoms order preferentially in some A2 B2 and AB3 interstitial sites. Below 5 K the erbium moments order in a canted magnetic structure, with an erbium moment of 6.6 [mu] B at 1.4 K. The 57Fe Mössbauer spectra of ErFe2D5 from 4.2 to 300 K indicate that there are no ordered Fe moments at zero field. These results are discussed in relation to the influence of hydrogen absorption on the magnetic interactions.

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC04405726

http://www.iop.org/EJ/abstract/0953-8984/15/25/306