Correlation-length-exponent relation for the two-dimensional random ising model |
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| Authors: | Lajko Igloi |
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| Institution: | Institute for Theoretical Physics, Szeged University, H-6720 Szeged, Hungary. |
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| Abstract: | We consider the two-dimensional (2D) random Ising model on a diagonal strip of the square lattice, where the bonds take two values, J1>J2, with equal probability. Using an iterative method, based on a successive application of the star-triangle transformation, we have determined at the bulk critical temperature the correlation length along the strip xi(L) for different widths of the strip L
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