A comparative study of magnetic behaviors in TbNi2, TbMn2 and TbNi2Mn
No Thumbnail Available
Date
2014-01-01
Journal Title
Journal ISSN
Volume Title
Publisher
AIP Publishing LLC.
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.
Description
Proceedings of the 55th Annual Conference on Magnetism and Magnetic Materials, 14-18 November 2010, Atlanta, Georgia.
Keywords
Transition temperature, Metals, Crystal lattices, Laves phases, Magnetic fields, Entropy
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. Paper presented at the 55th Annual Conference on Magnetism and Magnetic Materials, 14-18 November 2010, Atlanta, Georgia. In Journal of Applied Physics, 115(17), 17E135. doi:10.1063/1.4869440