Dear all,
I am trying to do some research on FePt based on an analytic bond-order potential(ABOP). ABOP is similar to Tersoff potential in the form. I want to change the ABOP to Tersoff potential. The corresponding parameters are easily calculated. There are three types(Fe-Fe, Fe-Pt, Pt-Pt) in ABOP, but eight types(Fe-Fe-Fe Fe-Fe-Pt Fe-Pt-Fe……) in Tersoff potential. How to correspond between three types and eight types?
Parameter Fe-Fe Fe-Pt Pt-Pt
D0 (eV) 1.50000000 2.64759104 3.20000000
r0 (Å) 2.29000000 2.36130052 2.42000000
β(Å−1) 1.40000000 1.45616698 1.61000000
S 2.06931090 2.26243642 2.29559060
γ 0.01157510 0.05633499 0.18546490
c 1.28987160 0.35073555 0.06090710
d 0.34132190 0.16902364 0.08000000
h -0.2600000 0.45035775 0.45500000
2μ(Å−1) 0.00000000 1.58564770 0.95780361
R (Å) 3.15000000 4.20000000 3.75000000
D (Å) 0.20000000 0.20000000 0.20000000
Thanks a lot,
Hao Dong