Added latest mixing rule

# Stillinger-Weber parameters for CdTe

# Parameters are from:

#

#	Wang, Stroud, and Markworth, PhysRevB, 40,5, 1989

#

# these entries are in LAMMPS "metal" units:

#   epsilon = eV; sigma = Angstroms

#   other quantities are unitless

# CdTe Stillinger-Weber potential: Z. Q. Wang, D. Stroud,

# and A. J. Markworth, Phys. Rev. B, 40, 3129(1989).

# format of a single entry (one or more lines):

#   element 1, element 2, element 3, 

#   epsilon, sigma, a, lambda, gamma, costheta0, A, B, p, q, tol

# The Stillinger-Weber parameters given in the literature are pair

# specific. While most of the parameters are indeed pairwise parameters

# according to their definition, the parameters epsilon and lambda

# should be viewed as three-body dependent. Here we assume that the

# the three-body epsilon and lambda is a geometric mean of the pairwise

# epsilon and lambda.

# Note that in LAMMPS, two-body parameters for element i and j are

# specified by the values on the i-j-j line. Two-body

# values on the i-j-i or i-i-j lines are ignored by LAMMPS, and so 

# are set to zero here.

# In lammps, the parameters for the ij pair are entered in

# the ijj three-body line. There is no unique way to convert pair

# parameters to three body parameters so the example here represents

# only one way. The three-body parameters epsilon_ijk can be calculated

# from the literature pair parameters using epsilon_ijk =

# sqrt(lambda_ij*epsilon_ij*lambda_ik*epsilon_ik)/lambda_ik, and the

# results are directly entered in this table. Obviously, this

# conversion does not change the two-body parameters epsilon_ijj. 

# All other ik pair parameters are entered on the i*k line, where *

# can be any species. This is consistent with the requirement of

# the ik parameter being on the ikk line.

Cd Cd Cd 	1.03 2.51  1.80  25.0  1.20  -0.333333333333

         	5.1726 0.8807  4.0  0.0 0.0

Cd Cd Te 	0.0  0.0  0.0  25.0  1.20  -0.333333333333

         	0.0 0.0 0.0 0.0 0.0

Cd Te Cd 	0.0  0.0  0.0  25.0  1.20  -0.333333333333

         	0.0 0.0 0.0 0.0  0.0

Cd Te Te 	1.03 2.51  1.80  25.0  1.20  -0.333333333333

         	7.0496 0.6022  4.0  0.0 0.0 

Te Cd Cd 	1.03 2.51  1.80  25.0  1.20  -0.333333333333

         	7.0496 0.6022  4.0  0.0 0.0

Te Cd Te 	0.0  0.0  0.0  25.0  1.20  -0.333333333333

         	0.0 0.0 0.0 0.0 0.0

Te Te Cd 	0.0  0.0  0.0  25.0  1.20  -0.333333333333

         	0.0 0.0 0.0 0.0 0.0

Te Te Te 	1.03 2.51  1.80  25.0  1.20  -0.333333333333

         	8.1415 0.6671  4.0  0.0 0.0 

# These entries are in LAMMPS "metal" units: epsilon = eV;

# sigma = Angstroms; other quantities are unitless

#     epsilon sigma a lambda gamma   cos(theta)     A      B     p   q  tol

Cd Cd Cd 1.03 2.51 1.80 25.0 1.20 -0.333333333333 5.1726 0.8807 4.0 0.0 0.0

Te Te Te 1.03 2.51 1.80 25.0 1.20 -0.333333333333 8.1415 0.6671 4.0 0.0 0.0

Cd Cd Te 1.03 2.51 1.80 25.0 1.20 -0.333333333333 7.0496 0.6022 4.0 0.0 0.0

Cd Te Te 1.03 2.51 1.80 25.0 1.20 -0.333333333333 7.0496 0.6022 4.0 0.0 0.0

Te Cd Cd 1.03 2.51 1.80 25.0 1.20 -0.333333333333 7.0496 0.6022 4.0 0.0 0.0

Te Cd Te 1.03 2.51 1.80 25.0 1.20 -0.333333333333 8.1415 0.6671 4.0 0.0 0.0

Te Te Cd 1.03 2.51 1.80 25.0 1.20 -0.333333333333 7.0496 0.6022 4.0 0.0 0.0

Cd Te Cd 1.03 2.51 1.80 25.0 1.20 -0.333333333333 5.1726 0.8807 4.0 0.0 0.0