Propagation of long range order in an extremely anisotropic 2D Ising system at very low temperatures — accelerative convergence Monte Carlo method

1990 ◽  
Vol 90-91 ◽  
pp. 287-288
Author(s):  
S. Ozawa ◽  
T. Kobayashi ◽  
S. Kamata ◽  
T. Haseda
2001 ◽  
Vol 87 (6) ◽  
Author(s):  
Roger G. Melko ◽  
Byron C. den Hertog ◽  
Michel J. P. Gingras

1991 ◽  
Vol 05 (19) ◽  
pp. 3061-3071 ◽  
Author(s):  
A.V. BAKAEV ◽  
V.I. KABANOVICH ◽  
A.M. KURBATOV

AF Potts model MC dynamics at T=0 is considered. It is shown that q=3 square lattice and q=4 triangular lattice models are frozen for local MC algorithm. The nature of the previously discussed long-range order phases is examined and entropically favored states are considered.


1994 ◽  
Vol 72 (22) ◽  
pp. 3598-3601 ◽  
Author(s):  
Anne van Otterlo ◽  
Karl-Heinz Wagenblast

1996 ◽  
Vol 10 (15) ◽  
pp. 731-736
Author(s):  
A.V. BAKAEV ◽  
V.I. KABANOVICH

The 3-state square lattice Potts model with interactions of spins belonging to the different sublattices, the nearest-neighbor (NN) interaction and “the move of the knight” (MK) antiferromagnetic interactions which also couples spins on the sublattice A to spins on B, is studied by Monte Carlo simulations. It is shown that the MK-interactions stabilizes the BSS phase in two dimensions, preserving macroscopic degeneracy of the ground state. In a range of competing ferromagnetic (NN) interactions “stripes” or “double-stripes” phases are found.


2014 ◽  
Vol 70 (5) ◽  
pp. 457-471 ◽  
Author(s):  
Vladimir M. Kaganer ◽  
Karl K. Sabelfeld

Diffraction profiles for different models of dislocation arrangements are calculated directly by the Monte Carlo method and compared with the strain distributions for the same arrangements, which corresponds to the Stokes–Wilson approximation. It is shown that the strain distributions and the diffraction profiles are in close agreement as long as long-range order is absent. Analytical calculation of the strain distribution for uncorrelated defects is presented. For straight dislocations, the Stokes–Wilson and the Krivoglaz–Wilkens approximations give the same diffraction profiles, with the Gaussian central part and ∝q−3power law at the tails.


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