Materials Data on TbFe2 by Materials Project
TbFe2 is Cubic Laves structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Tb is bonded in a 12-coordinate geometry to twelve Fe atoms. There are nine shorter (3.02 Å) and three longer (3.04 Å) Tb–Fe bond lengths. There are two inequivalent Fe sites. In the first Fe site, Fe is bonded to six equivalent Tb and six equivalent Fe atoms to form a mixture of edge, corner, and face-sharing FeTb6Fe6 cuboctahedra. All Fe–Fe bond lengths are 2.59 Å. In the second Fe site, Fe is bonded to six equivalent Tb and six Fe atoms to form a mixture of edge, corner, and face-sharing FeTb6Fe6 cuboctahedra. All Fe–Fe bond lengths are 2.58 Å.
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