The site diluted transverse spin-1 Ising model with a longitudinal crystal-field

K. Htoutou, A. Ainane, M. Saber and J.J. de Miguel

Physica A: Statistical Mechanics and its Applications, 2005, vol. 358, issue 1, 184-196

Abstract: The site diluted transverse spin-1 Ising model with a longitudinal crystal field on a square lattice is investigated within the effective field theory with a probability distribution technique that accounts for the single-site kinematic relations. The temperature dependence of the longitudinal and transverse magnetizations and quadrupolar moments is presented for selected values of the site dilution c and the strengths of the transverse field Ω/J and the longitudinal crystal field D/J. Results for the concentration dependence of the transition temperature are given. In a certain range of negative values of the strength of the crystal field D/J when it becomes sufficiently negative, we found re-entrant phenomenon which disappears with increasing the value of the strength of the transverse field.

Keywords: Diluted transverse spin-1 Ising model; Longitudinal crystal field; Magnetizations and quadrupolar moments (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:358:y:2005:i:1:p:184-196

DOI: 10.1016/j.physa.2005.06.053

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