../../td/EquilibriumCrystalStructure__TD_457028483760_002/runner Ca Si AB_oC8_63_c_c a b/a c/a y1 y2 standard 1 4.5463 2.3635044 0.85665266 0.13886994 0.43086519 LJ_ElliottAkerson_2015_Universal__MO_959249795837_003