Published June 14, 2007
| Version v1
Journal article
Magnetic ordering in the HfFe6Ge6-type TbFe6Sn4Ge2 compound
- 1. Centre for the Physics of Materials and Physics Department, McGill University, Montreal, Que. H3A 2T8 (Canada)
- 2. Laboratoire de Chimie du Solide Mineral, Universite Henri Poincare-Nancy I, associe au CNRS (UMR 7555), BP 239, 54506 Vandoeuvre les Nancy Cedex (France)
Description
We have determined the magnetic structures of the Tb and Fe sublattices in TbFe6 Sn4 Ge2 by combining powder neutron diffraction with Fe57 and Sn119 Mossbauer spectroscopy. TbFe6 Sn4 Ge2 adopts the hexagonal HfFe6 Ge6-type (P6/mmm) crystal structure. The Fe sublattice orders antiferromagnetically below TN=518(3) degree K, with the moments parallel to c. At Tt=42(1) degree K, the Tb sublattice orders helimagnetically, with a propagation vector Q=(0,0,0.0963) r.l.u. (at 2 degree K). This imposes helimagnetic order (with an identical propagation vector) on the Fe sublattice, indicating that the two sublattices are coupled for T<Tt. The canting angle of the Fe moments from the c-axis in the helimagnetic structure is 10(1)o
Additional details
Identifiers
- DOI
- 10.1016/j.jallcom.2006.06.099;
- PII
- S0925-8388(06)00843-7;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 436
- Journal Issue
- 1-2
- Journal Page Range
- p. 1-8
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39013528
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANTIFERROMAGNETISM; GERMANIUM ALLOYS; HEXAGONAL LATTICES; IRON ALLOYS; MAGNETIZATION; MOESSBAUER EFFECT; NEUTRON DIFFRACTION; POWDERS; TERBIUM ALLOYS; TIN ALLOYS; VECTORS
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; MAGNETISM; RARE EARTH ALLOYS; SCATTERING; TENSORS; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.