Magnetic and thermodynamic properties of heisenberg chains and n-nuclear cyclic clusters: S-i=5/2, S-i=3, and S-i=7/2 systems

作者：Rakitin Yu V^*; Starodub O R; Rakitina V M; Kalinnikov V T; Novotortsev V M

来源：Russian Journal of Inorganic Chemistry, 2007, 52(3): 398-404.

DOI：10.1134/S0036023607030187

Based on the previously developed method considering spin and point symmetry, numerical calculations of spin-level spectra have been performed for n-nuclear cyclic clusters with S (i) = 5/2 (n <= 9), S-i = 3 (n <= 8), and S-i = 7/2 (n <= 8). The theoretical curves of the magnetic susceptibility, the magnetic contribution to the heat capacity, and the internal energy as a function of temperature have been obtained. The theoretical curves of the magnetic susceptibility and magnetic contribution to the heat capacity have been extrapolated to n -> infinity with a controlled accuracy. These curves are compared to available data.

• 出版日期2007-3