Phase diagrams of the transverse Ising antiferromagnet in the presence of the longitudinal magnetic field

Minos A. Neto and J. Ricardo de Sousa

Physica A: Statistical Mechanics and its Applications, 2013, vol. 392, issue 1, 1-6

Abstract: In this paper we study the critical behavior of the two-dimensional antiferromagnetic Ising model in both uniform longitudinal (H) and transverse (Ω) magnetic fields. Using the effective-field theory (EFT) with correlation in single site clusters we calculate the phase diagrams in the H−T and Ω−T planes for the square lattice. We have only found second order phase transitions for all values of fields and reentrant behavior was not observed.

Keywords: Effective-field theory; Transverse field; Ising antiferromagnet (search for similar items in EconPapers)
Date: 2013
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:392:y:2013:i:1:p:1-6

DOI: 10.1016/j.physa.2012.07.073

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