#
# KIM-API: An API for interatomic models
# Copyright (c) 2013--2022, Regents of the University of Minnesota.
# All rights reserved.
#
# Contributors:
#    Ryan S. Elliott
#
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#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
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# This library is distributed in the hope that it will be useful,
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# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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This directory (ex_model_driver_P_Morse) contains a shifted Morse pair potential
Model driver written in C.

   phi(r) = epsilon * ( - exp[ -2*C*(r - Rzero) ] + 2*exp[ -C*(r - Rzero) ] )
            + shift

where shift is computed so that phi(rcut) = 0.0

To create a KIM Model from this Model Driver, one parameter file is required.
This file must have the following format:
   Line 1: `SpeciesName' string with element symbol
   Line 2: `cutoff' value in angstroms
   Line 3: Morse `epsilon' value in eV
   Line 4: Morse `C' value in 1/Angstroms
   Line 5: Morse `Rzero' value in Angstroms
Any additional lines will be silently ignored.
