../../td/EquilibriumCrystalStructure__TD_457028483760_002/runner O Si A2B_tP6_136_f_a a c/a x2 standard 1 4.2324 0.63647103 0.30675261 Tersoff_LAMMPS_MunetohMotookaMoriguchi_2007_SiO__MO_501246546792_000