Spiral spin structures of RMn6 Ge-6 (R = Gd, Tb, Dy)

Authors
Kelemen, MT Rosch, P Dormann, E Buschow, KHJ
Citation
Mt. Kelemen et al., Spiral spin structures of RMn6 Ge-6 (R = Gd, Tb, Dy), J MAGN MAGN, 223(3), 2001, pp. 253-260
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
223
Issue
3
Year of publication
2001
Pages
253 - 260
Database
ISI
SICI code
0304-8853(200102)223:3<253:SSSORG>2.0.ZU;2-H
Abstract
The field dependences of the magnetic moment of several GdxY1-xMn6Ge6 compo unds have been analysed by a mean-field theory of several spin structures. The assumption of spiral spin structures at low temperatures in these compo unds has been confirmed. In addition to this, the magnetic phase diagrams o f TbMn6Ge6 and DyMn6Ge6 have been deduced from magnetisation measurements o f powder samples. In contrast to GdMn6Ge6, the crystal fields of these comp ounds produce a variety of additional spin phases. (C) 2001 Elsevier Scienc e B.V. All rights reserved.