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# Contributors:
#    Daniel S. Karls
#    Ellad B. Tadmor
#    Ryan S. Elliott
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# Contributors:
#     Anshul Chawla 
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Model driver for the Khor-Das Sarma three-body bond-order potential
presented in

K.E.Khor and S. Das Sarma (1988)                                                 
"Proposed universal interatomic potential for elemental tetrahedrally      
bonded semiconductors", Physical Review B, Vol. 38, 3318-3322, 1988.     

This driver reads in one parameter file with the species followed by
ten parameters (required units indicated in square brackets following
the parameter):

species
A 	[eV]
B 	[unitless]
theta	[1/Angstrom]
lambda	[1/Angstrom]
alpha	[unitless]
beta	[unitless] 
gamma	[unitless]
eta	[unitless]
R	[Angstrom]
thetanot [radians]