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

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

Table 5 The calculated anisotropic sound velocities (in m/s) of C$_{3}$, Si$_{3}$, and Ge$_{3}$ in P6$_{2}$22 phase.