Cu fcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 3.630687043070793 Optimization terminated successfully. Current function value: -68.085436 Iterations: 73 Function evaluations: 192 C11 = 2602.910209 +/- 0.007336 GPa C12 = 1485.074842 +/- 0.005187 GPa C44 = 1488.161496 +/- 0.001834 GPa B = 1857.686631 +/- 0.004235 GPa