physica status solidi (b)

Spin‐1 Random‐Bond Transverse Ising Model with Competing Interactions

Chuan‐Zhang Yang, Jialin Zhong, Xue‐Fan Jiang

Published Jun 1, 1991• 12 citations

Abstract

Abstract The longitudinal magnetization, the transverse magnetization, and the order parameter y of the spin‐1 random‐bond transverse Ising model with competing interactions on a diamond lattice are discussed within the framework of the effective‐field theory. The phase diagrams of the system are obtained. The possible reentrant phenomena displayed by the system and the influence of random parameters α and p̄ on the behavior of the system are investigated.

DOI: 10.1002/pssb.2221650224

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physica status solidi (b)

Spin‐1 Random‐Bond Transverse Ising Model with Competing Interactions

Chuan‐Zhang Yang, Jialin Zhong, Xue‐Fan Jiang

Published Jun 1, 1991• 12 citations

Publisher

Abstract

DOI: 10.1002/pssb.2221650224

Related papers

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{J}_{1}

and

{J}_{2}

occur with probabilities 1-p and p, respectively, critical curves are obtained for various \ensuremath{\alpha}'s (\ensuremath{\alpha}\ensuremath{\equiv}

{J}_{1}

{J}_{2}

), and the critical bond concentrations

{p}_{c}

at which the ferromagnetic phase breaks down are determined. As \ensuremath{\alpha}\ensuremath{\rightarrow}0, the mixed model reduces to the diluted Ising model and the results obtained are compared to those available in the literature. The effect of the transverse field (for different \ensuremath{\alpha}'s) in the thermal behavior of the magnetization as a function of the concentration is also discussed.