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	<CENTER><A HREF = "http://lammps.sandia.gov">LAMMPS WWW Site</A> - <A HREF = "Manual.html">LAMMPS Documentation</A> - <A HREF = "Section_commands.html#comm">LAMMPS Commands</A>
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	<H3>pair_style yukawa command
	</H3>
	<P><B>Syntax:</B>
	</P>
	<PRE>pair_style yukawa kappa cutoff
	</PRE>
	<UL><LI>kappa = screening length (inverse distance units)
	<LI>cutoff = global cutoff for Yukawa interactions (distance units)
	</UL>
	<P><B>Examples:</B>
	</P>
	<PRE>pair_style yukawa 2.0 2.5
	pair_coeff 1 1 100.0 2.3
	pair_coeff * * 100.0
	</PRE>
	<P><B>Description:</B>
	</P>
	<P>Style <I>yukawa</I> computes pairwise interactions with the formula
	</P>
	<CENTER><IMG SRC = "Eqs/pair_yukawa.jpg">
	</CENTER>
	<P>Rc is the cutoff.
	</P>
	<P>The following coefficients must be defined for each pair of atoms
	types via the <A HREF = "pair_coeff.html">pair_coeff</A> command as in the examples
	above, or in the data file or restart files read by the
	<A HREF = "read_data.html">read_data</A> or <A HREF = "read_restart.html">read_restart</A>
	commands:
	</P>
	<UL><LI>A (energy units)
	<LI>cutoff (distance units)
	</UL>
	<P>The last coefficient is optional. If not specified, the global yukawa
	cutoff is used.
	</P>
	<P><B>Restrictions:</B> none
	</P>
	<P><B>Related commands:</B>
	</P>
	<P><A HREF = "pair_coeff.html">pair_coeff</A>
	</P>
	<P><B>Default:</B> none
	</P>
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