--- trunk/forceFields/SuttonChen.SC.frc	2005/11/09 00:11:15	722
+++ trunk/forceFields/SuttonChen.SC.frc	2005/12/29 20:19:23	830
@@ -1,6 +1,13 @@
 // This is the forcefield file for the Sutton-Chen formulation of the Finnis-Sinclair metallic potential
 // See Rafii-Tabar and Chen Phil. Mag. Letters. 63(1991), 217-224 for alloy formulation for SC varient
 
+begin Options
+      Name                  "SC"
+      DistanceMixingRule    "Geometric"
+      EnergyMixingRule      "Geometric"
+//  energy unit are eV. Convert to kcal/mol
+      EnergyUnitScaling     0.02306054
+end Options
 
 begin AtomTypes
 //Name        mass(amu)