Eur. Phys. J. B 29, 9-14 (2002)
https://doi.org/10.1140/epjb/e2002-00255-1

Magnetic phase transition and magnetic structure of ground state in CsDyW₂O₈

¹ Institute of Physics, al. Lotników 32/46, 02-668 Warsaw, Poland
² A.A. Galkin Physico-Technical Institute, 72 R. Luxemburg Str., 340114 Donetsk, Ukraine

Corresponding author: ^a borow@ifpan.edu.pl

Received: 7 January 2002
Revised: 15 May 2002
Published online: 7 September 2002

Abstract

Magnetic phase transition in the CsDyW₂O₈ magnet has been studied by means of low temperature specific heat C(T) measurements. The magnetic ordering temperature of the Dy³⁺ sublattice was established to be 1.34 K. The experimental results indicate on the antiferromagnetic character of interactions between Dy³⁺ ions. The behavior of the C(T) dependencies above and below T_N is discussed in frames of different theoretical models. The measurements data on temperature and field dependencies of magnetization are used to calculate the exchange and dipole-dipole interactions energy and to determine the possible magnetic structure of the ground state.