pair_yukawa.html
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pair_yukawa.html
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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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