Abstract
The magnetocaloric properties in the series Nd, Gd, Tb, Ho, Er) were fully investigated using a model Hamiltonian that includes the exchange magnetic interaction and the crystalline electrical-field anisotropy. All theoretical results was obtained using the proper model parameters found in the literature for the compounds belonging to this series. For we obtained a good agreement between theoretical and experimental data in the magnetocaloric potentials. An anomalous second peak was predicted to exist in the magnetocaloric curves for and it was ascribed to the high density of states at low temperature.
- Received 19 December 2000
DOI:https://doi.org/10.1103/PhysRevB.63.184406
©2001 American Physical Society