Research Article
Relationship between Curie Temperature Enhancement and Volume Expansion Induced by Nitrogenation for PrFe12—xMox and Their Nitrides
First published: 16 November 2001
Citations: 5
Abstract
In the present paper, based on the investigation of the structure and magnetic properties of PrFe12—xMoxNy and their parent compounds, the effect of the volume change due to nitrogenation on the Curie temperature of these compounds has been studied. The d ln TC/d ln V values were derived by comparing the change of Curie temperature and volume before and after nitrogenation. Our results indicate that the relationship between d ln TC/d ln V and the Curie temperature TC agrees with the Brouha-Buschow equation very well. The decrease of Curie temperature with increasing Mo concentration in the systems of PrFe12—xMox and their nitrides may be explained by the Mohn-Wohlfarth model considering the spin fluctuation effect.
