Magnetic and thermodynamic properties of Heisenberg chains and n-nuclear cyclic clusters: S
i
= 3/2 (n ≤ 11, n → ∞) and S
i
= 2 (n ≤ 10, n → ∞) systems |
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| Authors: | Yu V Rakitin O R Starodub V M Rakitina V T Kalinnikov V M Novotortsev |
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| Institution: | (1) Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Research Center, Russian Academy of Sciences, ul. Fersmana 14, Apatity, Murmansk oblast, 184200, Russia;(2) Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia |
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| Abstract: | Based on the method considering spin and spatial symmetry, numerical calculations of the spin-level spectra have been performed for n-nuclear cyclic clusters with S i = 3/2 (n ≤ 11) and S i = 2 (n ≤ 10). The theoretical curves of the magnetic susceptibility, the magnetic contribution to the heat capacity, the internal energy, and the entropy as a function of temperature have been obtained. The theoretical curves of the magnetic susceptibility and the magnetic contribution to the heat capacity have been extrapolated to n → ∞ with a controlled accuracy. |
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