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Phase Diagrams of a Transverse Ising Multilayer System with a Higher Spin Value

โœ Scribed by T. Kaneyoshi

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
147 KB
Volume
219
Category
Article
ISSN
0370-1972

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โœฆ Synopsis

The critical properties of a ferroelectric multilayer system consisting of two alternating different pseudo spin-1/2 and spin-S (S ! 1/2) ferroelectric slabs with the same thickness L are discussed by the use of the spin-S transverse Ising model. The behavior of the transition temperature T c and the critical transverse field W c is examined as a function of the inter-slab interaction R numerically, selecting the two values of L and S, namely L = 1, 2 and S = 1/2, 1. We have found many characteristic phenomena in the systems, such as double values of T c in a certain region of R, when the values of R and W are selected as large values.

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โœ Wei Jiang; Guo-Zhu Wei; Zi-Hua Xin ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 100 KB ๐Ÿ‘ 2 views

Within the framework of the effective-field theory with correlations, the ferromagnetic spin-2 Ising model with a transverse crystal field on honeycomb, square and simple cubic lattices is studied. We have investigated the effect of the transverse crystal field on the phase diagrams, magnetization,