Crystal growth and magnetic properties of Ln-Mn-Al (Ln=Gd, Yb) compounds of the CaCr 2Al 10 and ThMn 12 structure types
Document Type
Article
Publication Date
10-1-2012
Abstract
We report the growth and characterization of LnMn 2xAl 10-x (Ln=Gd, Yb) crystals adopting the CaCr 2Al 10 and ThMn 12 structure types. Single crystals of LnMn 2xAl 10-x were synthesized via the self-flux method and characterized with single crystal X-ray diffraction. We compare LnMn 2xAl 10-x compounds adopting the CaCr 2Al 10 and ThMn 12 structure types, and outline synthesis methods to obtain each polymorph. Magnetic susceptibility measurements show paramagnetic behavior down to 3 K for both CaCr 2Al 10- and ThMn 12-type compounds, with observed magnetic moments of 1.3μ B for compounds adopting the CaCr 2Al 10 structure type to 4.2μ B for those adopting the ThMn 12 structure type. Compounds of both structure type exhibit metallic resistivity, with upturns at low temperature attributed to Kondo scattering. © 2012 Elsevier Inc. All rights reserved.
Publication Source (Journal or Book title)
Journal of Solid State Chemistry
First Page
143
Last Page
150
Recommended Citation
Fulfer, B., Haldolaarachchige, N., Young, D., & Chan, J. (2012). Crystal growth and magnetic properties of Ln-Mn-Al (Ln=Gd, Yb) compounds of the CaCr 2Al 10 and ThMn 12 structure types. Journal of Solid State Chemistry, 194, 143-150. https://doi.org/10.1016/j.jssc.2012.05.002