Jp. Semitelou et Jk. Yakinthos, COMMENSURATE AND INCOMMENSURATE MAGNETIC-STRUCTURE OF TB5SN3, Journal of magnetism and magnetic materials, 186(1-2), 1998, pp. 107-114
Neutron diffraction measurements on the hexagonal Tb5Sn3 compound, wit
h space group P6(3/mem) indicate a 55 K transition to an incommensurat
e transverse amplitude modulated structure. The magnetic propagation v
ector has a k(z) = 0.528c component and the terbium magnetic moment d
irection is parallel to the a-axis of the crystal. The compound presen
ts a commensurate antiferromagnetic structure at 1.8 K with an orthohe
xagonal enlarged magnetic cell. The moments direction remains parallel
to a. (C) 1998 Elsevier Science B.V. All rights reserved.