A pr 1 99 6 Extrapolation procedure for low - temperature series for the square lattice spin - 1 Ising model
نویسندگان
چکیده
The finite-lattice method of series expansions has been combined with a new extrapolation procedure to extend the low-temperature series for the specific heat, spontaneous magnetisation and susceptibility of the spin-1 Ising model on the square lattice. The extended series were derived by directly calculating the series to order 99 (in the variable u = exp[−J/k B T ]) and using the new extrapolation procedure to calculate an additional 13–14 terms.
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