The Critical Exponent v along the Ferromagnetic-Nonferromagnetic Phase Boundary in the Two-Dimensional ±-J Ising Model
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概要
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The value of the critical exponent P of the two-dimextsional A-J lsing model alongthe ferromagnetic-nonferromagnetic phase boundary ima the p-T plane ( p is the concentration of -FJ bonds; T is the temperattrre) has been calculated by the use of thetransfer matrix method and the Roomany-Wyld approximation for long strips withfinite width (L X 10': L<; 18), and has been found to take almost constant value, 1.0,at temperature above the Nishimori line. By the same xnethod, a lower bound of thecritical concentration between paramagnetic phase and the random antiphase state(RAS phase) has been calculated at some temperature below the Nishimori line in thep-T plane.
- 社団法人日本物理学会の論文
- 1992-05-15
著者
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Oguchi Takehiko
Tokyo Institute Of Polytechnics
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Kitatani Hidetsugu
Department Of Electrical Engineering Nagaoka University Of Technology
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