Surface critical behavior of two-dimensional dilute Ising models

Details Surface critical behavior of two-dimensional dilute Ising models Surface critical behavior of two-dimensional dilute Ising models

1997-07-31

arxiv.org/abs/cond-mat/9707336v1

J. Stat. Phys., 89 (1997) 1079

Physics

Condensed Matter

Disordered Systems and Neural Networks

6 pages in RevTex, 3 ps figures, to appear in Journal of Stat. Phys

Scientific paper

10.1007/BF02764223

Ising models with nearest-neighbor ferromagnetic random couplings on a square lattice with a (1,1) surface are studied, using Monte Carlo techniques and star-tiangle transformation method. In particular, the critical exponent of the surface magnetization is found to be close to that of the perfect model, beta_s=1/2. The crossover from surface to bulk critical properties is discussed.

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