Thermodynamic properties of interlayer-coupling antiferromagnetic triangular lattice in the case of S>1/2

We study the thermal properties of the Heisenberg antiferromagnetic models with spin S=1/2,1,3/2,2, and 5/2 on full frustrated triangular lattices. The results agree fairly with those of Monte Carlo simulation and some experiments. The effect of the spin magnitudes on the low-temperature phase transitions and the spin excitation spectrum is also discussed.