Monte Carlo study of the three-dimensional spatially anisotropic Ising superantiferromagnet in the presence of a magnetic field

The phase transition of the three-dimensional spatially anisotropic Ising antiferromagnetic model in the presence of an uniform longitudinal magnetic field H is studied by using the traditional Monte Carlo (MC) simulation for sizes L=16, 32 and 64. The model consists of ferromagnetic interactions Jz...

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Bibliographic Details
Published in:Physics letters. A 2013-11, Vol.377 (34-36), p.1991-1995
Main Authors: Salmon, Octavio D.R., Neto, Minos A., Viana, J. Roberto, Padilha, Igor T., de Sousa, J. Ricardo
Format: Article
Language:English
Subjects:
Anisotropy
Antiferromagnetism
Computer simulation
Ising model
Magnetic fields
Monte Carlo methods
Phase diagrams
Three dimensional
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Summary:The phase transition of the three-dimensional spatially anisotropic Ising antiferromagnetic model in the presence of an uniform longitudinal magnetic field H is studied by using the traditional Monte Carlo (MC) simulation for sizes L=16, 32 and 64. The model consists of ferromagnetic interactions Jz=λ2Jx in the x(z) direction and antiferromagnetic interactions Jy=λ1Jx in the y direction (Ising superantiferromagnetic). For the particular case λ1=λ2=1 we obtain the phase diagram in the T–H plane. Was observed first- and second-order transitions in the low and high temperature limits, respectively, with the presence of a tricritical point. •We study the Ising superantiferromagnet on an anisotropic simple cubic lattice by using Monte Carlo simulation.•We calculate the Binder cumulant.•The model presents second and first-order phase transitions.•A comparison of the with the results in the anisotropic square lattice is presented.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2013.06.020