Phase diagrams of transverse Ising film

Xuan-Zhang Wang and Yan Zhao

Physica A: Statistical Mechanics and its Applications, 1993, vol. 193, issue 1, 133-140

Abstract: Applying the effective-field theory, we study the phase diagrams of a transverse Ising film. The phase diagrams show that, for JS/J < Rc (Rc is a critical value of JS/J), the critical temperature Tc of the film is smaller than the bulk critical temperature Tbc of the corresponding semi-infinite system; however, for JS/J >Rc, Tc is larger than the surface critical temperature Tsc of the semi-infinite system and as JS/J is increased further, Tc (except Tc of the film with two layers) rapidly approaches Tsc. We also calculate the critical transverse field hc and Tc as a function of the film thickness.

Date: 1993
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:193:y:1993:i:1:p:133-140

DOI: 10.1016/0378-4371(93)90220-X

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