Journal of Physical Studies 2(1), 128–135 (1998)
DOI: https://doi.org/10.30970/jps.02.128

STATIC SUSCEPTIBILITIES OF NONUNIFORM AND RANDOM ISING CHAINS

O. Derzhko, O. Zaburannyi
Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine
1 Svientsitskii Str., Lviv, UA-290011, Ukraine
Tel: (0322)427439, fax: (0322)761978, email: derzhko@icmp.lviv.ua
Ivan Franko Lviv State University, Chair of Theoretical Physics
12 Drahomanov Str., Lviv, UA-290005, Ukraine

We have derived exact results for the initial static susceptibilities of nonuniform spin-$\frac{1}{2}$ Ising chains. The results obtained permit one to study the random–bond Ising chain. The influence of several types of disorder on the temperature dependence of the initial static susceptibilities is discussed.