Open AccessStructure and Curie temperature of Y2(Fe1-x-y,Coy,Crx)17 compounds
Author(s) -
Hao Yan-Ming,
Wei Zhao,
Yan Gao
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.2612
Subject(s) - curie temperature , ferromagnetism , materials science , magnetization , curie , condensed matter physics , curie–weiss law , crystallography , nuclear magnetic resonance , chemistry , physics , magnetic field , quantum mechanics
The structure and Curie temperature of Y2(Fe1-x-y,Coy ,Crx)17 c ompounds have been investigated by means of x_ray diffraction and magnetization measurement. The Y2(Fe1-x-y,Coy,Crx) 17 compounds have a hexago nal Th2Ni17_type structure. With increasing x, the unit_ce ll volumes of Y2Fe17-xCrx and Y2CoFe16-xCrx compounds have a small decreas e initially, followed by a greater decrease. It is proved that the magnetic inte raction of Fe atoms at 4f sites of Y2Fe17 compound is anti ferromagnetic by studying the variation of Curie temperature of Y2(Fe1-x-y,Coy,Crx )17 compounds. The result also shows that a few Co and Cr atoms subst ituti ng for Fe atoms can enhance Curie temperature of Y2(Fe1-x-y,Coy,Crx)17 obviously.