Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10480916 | Physica A: Statistical Mechanics and its Applications | 2013 | 9 Pages |
Abstract
We have studied the anisotropic two-dimensional nearest-neighbor Ising model with competitive interactions in both uniform longitudinal field H and transverse magnetic field Ω. Using the effective-field theory (EFT) with correlation in cluster with N=1 spin we calculate the thermodynamic properties as a function of temperature with values H and Ω fixed. The model consists of ferromagnetic interaction Jx in the x direction and antiferromagnetic interaction Jy in the y direction, and it is found that for H/Jyâ[0,2] the system exhibits a second-order phase transition. The thermodynamic properties are obtained for the particular case of λ=Jx/Jy=1 (isotropic square lattice).
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Denise A. do Nascimento, Minos A. Neto, J. Ricardo de Sousa, J.T.M. Pacobahyba,