question about the mixing rule of tersoff potential

Hi, all,
In tersoff potential, the mixing rule gives the two parameters A and B as follows: Aij=sqrt(Ai * Aj); Bij=Kijsqrt(BiBj). For a particular system, what is the value of Kij? I have checked the parameters in SiCGe.tersoff and SiO.tersoff provided in LAMMPS. Kij for Si-C is about 0.977, and Kij for Si-O is about 1.179.
If I study Si-Ti system using tersoff potential, what is the value of Kij?


Aidan may have an idea as to what is standardly
done. Typically, to do
this you look in a paper that describes Tersoff
for some alloy and it will list the parameters used.