English

Ising model on a square lattice with second-neighbor and third-neighbor interactions

Statistical Mechanics 2015-12-09 v1

Abstract

We studied the phase transitions and magnetic properties of the Ising model on a square lattice by the replica Monte Carlo method and by the method of transfer-matrix, the maximum eigenvalue of which was found by Lanczos method. The competing exchange interactions between nearest neighbors J1J_{1}, second J2J_{2}, third neighbors J3J_{3} and an external magnetic field were taken into account. We found the frustration points and expressions for the frustration fields, at crossing of which cardinal changes of magnetic structures (translational invariance changes discontinuously) take place. A comparative analysis with 1D Ising model was performed and it was shown that the behavior of magnetic properties of the 1D model and the 2D model with J1J_{1} and J3J_{3} interactions reveals detailed similarity only distinguishing in scales of magnetic field and temperature.

Keywords

Cite

@article{arxiv.1407.1578,
  title  = {Ising model on a square lattice with second-neighbor and third-neighbor interactions},
  author = {F. A. Kassan-Ogly and A. K. Murtazaev and A. K. Zhuravlev and M. K. Ramazanov and A. I. Proshkin},
  journal= {arXiv preprint arXiv:1407.1578},
  year   = {2015}
}

Comments

9 pages, 16 figures

R2 v1 2026-06-22T04:56:34.464Z