J. Kusz et al., X-ray investigation and discussion of the magnetostriction of Gd3T (T = Ni, Rh, Ir-x) single crystals, J APPL CRYS, 33, 2000, pp. 213-217
The variations of the lattice parameters of Gd3T(T = Ni, Rh, Ir-x) single c
rystals with temperature were measured in the range 10-300 K. The compounds
with Ni and Rh crystallize in the orthorhombic space group Pnma, but the c
ompound with Ir crystallizes as Gd5Ir2 in the monoclinic space group A2/a.
The three compounds exhibit an anomalous anisotropic spontaneous magnetostr
iction below the magnetic ordering temperature. (C) 2000 International Unio
n of Crystallography Printed in Great Britain - all rights reserved.