Crystallographic and magnetic properties of (Nd,Dy)3Fe27.5(Ti,Mo)1.5 compounds

Autor: Yongmei Hao, Y.J. Xue, Xu Li, S.B. Han, Zhongbo Hu, Xiangfeng Liu, J.H. Li, Jianguo Lv, D.F. Chen, J. Peng
Rok vydání: 2006
Předmět:
Zdroj: Journal of Magnetism and Magnetic Materials. 301:415-421
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2005.07.018
Popis: A systematic study of the formation, structure and magnetic properties of (Nd,Dy)3Fe27.5(Ti,Mo)1.5 compounds has been performed. Rietveld analyses of the X-ray patterns of the samples indicate that the concentrations of Ti and Mo affect the formation and structural properties slightly, whereas different rare-earth (Nd and Dy) contents influence them significantly. It is found that high Dy contents make it difficult to form the 3:29-type structures. The Curie temperatures of Nd2.1Dy0.9Fe27.5Ti1.5−xMox decrease monotonically as more Ti was replaced by Mo but their saturation magnetizations remain almost unchanged; in contrast, for Nd3−yDyyFe27.5TiMo0.5, their saturation magnetizations decrease monotonically with increasing Dy contents while their Curie temperatures are constant.
Databáze: OpenAIRE