D. Neogy, P. Paul, K. Chattopadhyay
Jul 1, 2002
Citations
0
Influential Citations
6
Citations
Journal
Journal of Magnetism and Magnetic Materials
Abstract
Abstract Magnetic susceptibility measurements on single crystals of dysprosium trifluoromethanesulfonate (DyTFMS) have been carried out from 300 K down to 13 K. The hexagonal crystal structure of DyTFMS renders the crystal uniaxial with the Kramers ion Dy 3+ occupying a site of C 3h symmetry. The principal magnetic susceptibilities, observed by us and the Friedberg group, over the wide range 300 to ∼1.0 K find an excellent theoretical simulation by the crystal field perturbed J -mixed eigenvectors with due consideration of the intermediate coupling effects. No ordering effects were noticed down to ∼13 K indicating the interionic interaction to be predominantly of the dipolar type which is consistent with the discovery of a ferromagnetic transition at T ∼0.111 K by the Friedberg group. The g -values derived from other sources are reasonably accounted for. The thermal behavior of quadrupole splitting and that of electronic and nuclear heat capacities is also worked out.