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.
Original language | English |
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Article number | 07E331 |
Journal | Journal of Applied Physics |
Volume | 109 |
Issue number | 7 |
DOIs | |
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.
Funders | Funder number |
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U.S. Department of Defense | N00014-08-1-0783 |
U.S. Department of Energy | |
Basic Energy Sciences | |
University of Tennessee | |
Division of Materials Sciences and Engineering |