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Title: A comparative study of magnetic behaviors in TbNi2, TbMn2 and TbNi2Mn
Authors: Wang, JL
Din, MFM
Kennedy, SJ
Hong, F
Campbell, SJ
Studer, AJ
Wu, GH
Cheng, ZX
Dou, SX
Keywords: Transition temperature
Crystal lattices
Laves phases
Magnetic fields
Issue Date: 1-Jan-2014
Publisher: AIP Publishing LLC.
Citation: Wang, J. L., Md Din, M. F., Kennedy, S. J., Hong, F., Campbell, S. J., Studer, A. J., Wu, G. H., Cheng, Z. X., & Dou, S. X. (2014). A comparative study of magnetic behaviors in TbNi2, TbMn2 and TbNi2Mn. Journal of Applied Physics, 115(17), 17E135. doi:10.1063/1.4869440
Abstract: All TbNi2, TbMn2, and TbNi2Mn compounds exhibit the cubic Laves phase with AB2-type structure in spite of the fact that the ratio of the Tb to transition-metal components in TbNi2Mn is 1:3. Rietveld refinement indicates that in TbNi2Mn the Mn atoms are distributed on both the A (8a) and B (16d) sites. The values of the lattice constants were measured to be a¼14.348A ° (space group F-43 m), 7.618A ° , and 7.158A ° (space group Fd-3 m) for TbNi2, TbMn2, and TbNi2Mn, respectively. The magnetic transition temperatures TC were found to be TC¼38K and TC¼148K for TbNi2 and TbNi2Mn, respectively, while two magnetic phase transitions are detected for TbMn2 at T1¼20K and T2¼49 K. Clear magnetic history effects in a low magnetic field are observed in TbMn2 and TbNi2Mn. The magnetic entropy changes have been obtained. © 2014 AIP Publishing LLC.
Gov't Doc #: 7673
ISSN: 1089-7550
Appears in Collections:Journal Articles

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