Si bcc ThreeBodyCluster_BH_BiswasHamann_1987_Si__MO_019616213550_000 3.23587754368782
Optimization terminated successfully.
         Current function value: -8.584787
         Iterations: 73
         Function evaluations: 188

C11 =   320.056678 +/-     0.007336 GPa
C12 =   353.366984 +/-     0.005187 GPa
C44 =    29.420407 +/-     0.001834 GPa
B   =   342.263549 +/-     0.004235 GPa