HIGH-TEMPERATURE SUSCEPTIBILITY SERIES FOR SQUARE-LATTICE ISING MODEL WITH FIRST AND SECOND NEIGHBOUR INTERACTIONS
2002 ◽
Vol 16
(32)
◽
pp. 4919-4922
Keyword(s):
We have calculated the high-temperature series expansion of the zero-field susceptibility of the square-lattice Ising model with first and second neighbour interactions to the 20th order by computer. Our results extend the previous calculation by Hsiao and Lin to two more orders. We use the Padé approximants to estimate the critical exponent γ and the critical temperature. Our result 1.747 < γ < 1.753 supports the universality conjecture that all two-dimensional Ising models have the same critical exponent γ = 1.75.
2002 ◽
Vol 16
(32)
◽
pp. 4911-4917
1996 ◽
Vol 07
(04)
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pp. 609-612
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1995 ◽
Vol 98
(1)
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pp. 97-110
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1989 ◽
Vol 423
(1865)
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pp. 279-300
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1984 ◽
Vol 54
(4)
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pp. 333-350
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1998 ◽
Vol 12
(20)
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pp. 1995-2003
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1972 ◽
Vol 5
(5)
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pp. 624-639
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Keyword(s):