Structural and magnetic properties of Tb6Fe1-xCoxBi2 (0 ≤ x ≤ 0.375) compounds

被引：3

作者：

Jia, Lin ^{[1
]}

Koehler, Michael ^{[1
]}

McCarthy, David ^{[1
]}

McGuire, Michael A. ^{[2
]}

Keppens, Veerle ^{[1
]}

机构：

[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[2] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 07期

关键词：

INTERMETALLIC COMPOUNDS; RARE-EARTH;

D O I：

10.1063/1.3565515

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Tb(6)Fe(1-x)C(o)xBi(2) (x = 0, 0.125, 0.250, 0.375) compounds have been synthesized, and the structural and magnetic properties are reported. All of the compounds crystallize in the hexagonal Zr6CoAs2-type structure at room temperature, but low temperature x-ray diffraction measurements on the Co-doped samples Tb6Fe0.750Co0.250Bi2 and Tb6Fe0.625Co0.375Bi2 show a splitting of the Bragg peaks, indicating a symmetry lowering structural phase transition at similar to 40 K. Two magnetic transitions are observed, with T-C1 similar to 250 K and T-C2 similar to 70 K. While the high temperature transition corresponds to the ferromagnetic ordering of the Tb moments, the lower transition is most likely linked to the structural transition. (C) 2011 American Institute of Physics. [doi:10.1063/1.3565515]

引用

页数：3

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