| 1 | // This is the forcefield file for the Sutton-Chen formulation of the Finnis-Sinclair metallic potential | 
| 2 | // See Rafii-Tabar and Chen Phil. Mag. Letters. 63(1991), 217-224 for alloy formulation for SC varient | 
| 3 |  | 
| 4 | begin Options | 
| 5 | Name                  "SC" | 
| 6 | DistanceMixingRule    "Geometric" | 
| 7 | EnergyMixingRule      "Geometric" | 
| 8 | //  energy unit are eV. Convert to kcal/mol | 
| 9 | EnergyUnitScaling     0.02306054 | 
| 10 | end Options | 
| 11 |  | 
| 12 | begin AtomTypes | 
| 13 | //Name        mass(amu) | 
| 14 | Ni      58.710 | 
| 15 | Cu      63.550 | 
| 16 | Rh      102.90550 | 
| 17 | Pd      106.42 | 
| 18 | Ag      107.8682 | 
| 19 | Ir      192.217 | 
| 20 | Pt      195.09 | 
| 21 | Au      196.97 | 
| 22 | Pb      207.2 | 
| 23 | Al      26.981538 | 
| 24 | end AtomTypes | 
| 25 |  | 
| 26 |  | 
| 27 | begin SCAtomTypes | 
| 28 | // Name  epsilon(eV)      c      m       n      alpha(angstroms) | 
| 29 | Ni      0.0015714       39.755  6.0     9.0     3.52 | 
| 30 | Cu      0.0012386       39.755  6.0     9.0     3.61 | 
| 31 | Rh      0.00049371      145.658 6.0     12.0    3.80 | 
| 32 | Pd      0.00041790      108.526 7.0     12.0    3.89 | 
| 33 | Ag      0.00025415      145.658 6.0     12.0    4.09 | 
| 34 | Ir      0.00024489      337.831 6.0     14.0    3.84 | 
| 35 | Pt      0.0019835       34.428  8.0     10.0    3.92 | 
| 36 | Au      0.0012794       34.428  8.0     10.0    4.08 | 
| 37 | Pb      0.00055772      45.882  7.0     10.0    4.95 | 
| 38 | Al      0.0033307       16.460  6.0     7.0     4.05 | 
| 39 | end SCAtomTypes |