../../td/EquilibriumCrystalStructure__TD_457028483760_002/runner Si A_tI8_139_h a c/a x1 standard 1 6.6881 0.57703982 0.8213634 Sim_LAMMPS_ModifiedTersoff_KumagaiIzumiHara_2007_Si__SM_773333226968_000