git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@491 f3b2605a-c512-4ea7-a41b-209d697bcdaa
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@ -80,6 +80,14 @@ since a Coulombic cutoff cannot be specified for an individual I,J
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type pair. All type pairs use the same global Coulombic cutoff
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specified in the pair_style command.
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If the pair_coeff command is not used to define coefficients for a
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particular I != J type pair, the mixing rule for epsilon and sigma for
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all class2 potentials is to use the {sixthpower} formulas documented
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by the "pair_modify"_pair_modify.html command. The "pair_modify
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mix"_pair_modify.html setting is thus ignored for class2 potentials
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for epsilon and sigma. However it is still followed for mixing the
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cutoff distance.
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[Restrictions:]
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These styles are part of the "class2" package. They are only enabled
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