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Structure and magnetic properties of TbCo 7– x M x
Author(s) -
Guo Yongquan,
Feng Weicun,
Luo Jun,
Liang Jingkui,
Yu Xiaojun,
Li Wei
Publication year - 2005
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200520070
Subject(s) - electronegativity , atomic radius , valence (chemistry) , crystallography , intermetallic , ferromagnetism , transition metal , metal , crystal structure , magnetic moment , chemistry , materials science , condensed matter physics , physics , metallurgy , biochemistry , organic chemistry , alloy , catalysis
A novel intermetallic compound, TbCo 7– x M x (M = 3d transition metal or normal metal), has been successfully synthesized. TbCo 7– x M x crystallizes in a hexagonal TbCu 7 structure with space group of P6/mmm. According to the structural refinement, the M dopants occupy the 2e and 3g crystal positions based on their electronegativities. TbCo 7– x M x exhibits ferromagnetic order. The saturation moment has been calculated with a corrected magnetic valence model; the calculated results agree well with experiment. The correction to the structural stability model of TbCo 7– x M x has been discussed in terms of the effective atomic radius ratio and the difference of electronegativity between Tb and (Co, M). (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)