Physical Properties of Group 14 in $P6_{2}$22 Phase: First-Principles Calculations *

Ying-Bo Zhao,Wei Zhang,Qing-Yang Fan

Fig. 1 (Color online) (a) The crystal structure of P6$_{2}$22-X$_{3}$ (X=C, Si, Ge), (b) the structural view along the [110] direction, and (c) the structural view along the [001] direction.