Structural and magnetic properties of Tb6Fe1-xCo xBi2 (0≤x≤ 0.375) compounds

Lin Jia; Michael Koehler; David McCarthy; Michael A. McGuire; Veerle Keppens

doi:10.1063/1.3565515

Structural and magnetic properties of Tb₆Fe_1-xCo _xBi₂ (0≤x≤ 0.375) compounds

Lin Jia
, Michael Koehler
, David McCarthy
, Michael A. McGuire
, Veerle Keppens

Correlated Electron Materials

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Tb₆Fe_1-xCo_xBi₂ (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 Tb ₆Fe_0.750Co_0.250Bi₂ and Tb ₆Fe_0.625Co_0.375Bi₂ show a splitting of the Bragg peaks, indicating a symmetry lowering structural phase transition at ∼40 K. Two magnetic transitions are observed, with T_C1 ∼ 250 K and T_C2 ∼ 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.

Original language	English
Article number	07E331
Journal	Journal of Applied Physics
Volume	109
Issue number	7
DOIs	https://doi.org/10.1063/1.3565515
State	Published - Apr 1 2011

Funding

Work at The University of Tennessee is supported by DOD DEPSCoR Grant No. N00014-08-1-0783. Work at Oak Ridge National Laboratory was sponsored by the Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy.

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title = "Structural and magnetic properties of Tb6Fe1-xCo xBi2 (0≤x≤ 0.375) compounds",

abstract = "Tb6Fe1-xCoxBi2 (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 Tb 6Fe0.750Co0.250Bi2 and Tb 6Fe0.625Co0.375Bi2 show a splitting of the Bragg peaks, indicating a symmetry lowering structural phase transition at ∼40 K. Two magnetic transitions are observed, with TC1 ∼ 250 K and TC2 ∼ 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.",

author = "Lin Jia and Michael Koehler and David McCarthy and McGuire, \{Michael A.\} and Veerle Keppens",

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T1 - Structural and magnetic properties of Tb6Fe1-xCo xBi2 (0≤x≤ 0.375) compounds

AU - Jia, Lin

AU - Koehler, Michael

AU - McCarthy, David

AU - McGuire, Michael A.

AU - Keppens, Veerle

PY - 2011/4/1

Y1 - 2011/4/1

N2 - Tb6Fe1-xCoxBi2 (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 Tb 6Fe0.750Co0.250Bi2 and Tb 6Fe0.625Co0.375Bi2 show a splitting of the Bragg peaks, indicating a symmetry lowering structural phase transition at ∼40 K. Two magnetic transitions are observed, with TC1 ∼ 250 K and TC2 ∼ 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.

AB - Tb6Fe1-xCoxBi2 (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 Tb 6Fe0.750Co0.250Bi2 and Tb 6Fe0.625Co0.375Bi2 show a splitting of the Bragg peaks, indicating a symmetry lowering structural phase transition at ∼40 K. Two magnetic transitions are observed, with TC1 ∼ 250 K and TC2 ∼ 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.

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Structural and magnetic properties of Tb₆Fe_1-xCo _xBi₂ (0≤x≤ 0.375) compounds

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