Condensed Matter Physics, 1996, No. 7, p. 117-132, English
<br><A HREF="https://doi.org/10.5488/CMP.7.117"> DOI:10.5488/CMP.7.117</A>


<HR> 
<B> Title: </B> RELAXATION DYNAMICS OF DISORDERED ISING MODEL. TWO-SITE CLUSTER APPROXIMATION <BR>

<B> Authors: </B> R.R.Levitskii, S.I.Sorokov, R.O.Sokolovskii (Institute for Condensed Matter
Physics Ukrainian National Academy of Sciences, 1 Svientsitski St.,
290011 Lviv-11, Ukraine)

<p>
<blockquote>
Spin relaxation in a site-disordered Ising model within
master equation approach is studied. The (q,omega)-dependent
susceptibility of the model is calculated and investigated.
Effects described by the two-site cluster approximation and
lost by the mean field approximation are discussed. Comparison of obtained
results to dielectric measurements in Cs(H_{1-x}D_x)_2PO_4 is presented.
</blockquote>
<B>Comments:</B> Refs. 13, Figs. 5, Tabs. 1. <BR>

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