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Magnetic properties of Tb2(Fe,Si)17 single crystals

Published online by Cambridge University Press:  31 January 2011

Y. X. Li ,
S. X. Gao ,
J. Du ,
C. C. Tang ,
C. Cai ,
G. H. Wu  and
W. S. Zhan
Y. X. Li
Affiliation:
State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
S. X. Gao
Affiliation:
State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
J. Du
Affiliation:
State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
C. C. Tang
Affiliation:
State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
C. Cai
Affiliation:
State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
G. H. Wu
Affiliation:
State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
W. S. Zhan
Affiliation:
State Key Laboratory for Magnetism, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China
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Abstract

The magnetic properties of single-crystalline Tb2Fe17−xSix (x = 0, 1, 2, 3, and 3.3) have been investigated. The Si substitution constricted the lattices by 1.5% and caused the Th2Ni17 transfer to Th2Zn17. The Curie temperature increased from 413 to 526 K, and the spontaneous magnetic moment decreased from 82.6 to 46.4 emu/g with the increase of Si. The stronger anisotropy and coercivity were generated by Si occupying the Fe sublattices. A domain wall pinning-dominated mechanism was responsible for increasing the coercivity force from 0.01 T (x = 1) to about 0.36 T (x = 3.3) at 1.5 K.

Type
Materials Communications
Information
Journal of Materials Research , Volume 14 , Issue 7 , July 1999 , pp. 2697 - 2700
Copyright
Copyright © Materials Research Society 1999

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References

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