1984 Volume 53 Issue 8 Pages 2622-2628
The lowest eigenvalue of the transfer-integral equation for the Frenkel-Kontorowa system, having the misfit parameter l (closely related to a normalized particle density ρ), and the specific heat derived therefrom are analytically discussed from a high-temperature expansion approach. In the case of l=0 (ρ=1) for which Schneider-Stoll [SS] have obtained exact numerical solutions, we can reproduce a maximum of the specific heat about 1.06 at kBT=11.0 in SS units, being passably consistent with the SS exact result. The cases for l≠0 (1>ρ>0.5) are also studied together with a validity range of the present approximation.
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