Spontaneous magnetization of the Ising model on a layered square lattice |
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Authors: | K Y Lin S K Ma |
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Institution: | (1) Physics Department, National Tsing Hua University, 30043 Hsinchu, Taiwan |
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Abstract: | We have studied the Ising model on a layered square lattice with four different coupling constants and two different magnetic moments. The partition function at zero magnetic field is derived exactly. We propose a formula for the spontaneous magnetization which agrees with the exact low-temperature series expansion up to the 16th order and reduces to the exact result of Au-Yang and McCoy in a special case. |
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Keywords: | Ising model spontaneous magnetization layered square lattice series expansion |
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