Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-423 - C8-424
DOI https://doi.org/10.1051/jphyscol:19888193
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-423-C8-424

DOI: 10.1051/jphyscol:19888193

INCOMMENSURATE AND LOCK-IN MAGNETIC PHASE TRANSITIONS IN TbSi

P. Schobinger-Papamantellos1, K. H. J. Buschow2, F. Maaroufi3 et P. Tolédano4

1  Institut für Kristallographie und Petrographie, ETHZ, CH-8092 Zürich, Switzerland
2  Philips Research Laboratories, 5600 JA Eindhoven, The Netherlands
3  Laboratoire des Transitions de Phases, 33 rue Saint-Leu, 80039 Amiens Cedex, France
4  Laboratoire des Transitions de Phases, 33 rue Saint-Leu, 80039 Amiens Cedex, France.


Abstract
Neutron diffraction measurements on TbSi disclose the existence of a transversal sinusoïdally modulated structure, with wave-vector Q = (0, ½, qz) between the FeB type paramagnetic phase (T > 57.5 K) and the collinear antiferromagnetic order (T < 37 K) previously reported. The sequence of phases is discussed in the framework of Landau's theory.