Effect of the transverse field on the site-diluted Ising model in a longitudinal random field |
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| Authors: | Ya-Qiu Liang Guo-Zhu Wei Zhi-Dong Zhang |
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| Affiliation: | 1. International Center for Material Physics, Academia Sinica, Shenyang 110015, China;2. Department of Physics, Liaoning University, Shenyang 110036, China;3. College of Sciences, Northeastern University, Shenyang 110006, China |
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| Abstract: | ![]()
Phase diagrams and magnetization curves of a diluted spin-3/2 transverse Ising model in a random field on honeycomb lattices are investigated by the use of an effective-field theory with correlations. The tricritical point is found in the system, in contrast to the corresponding spin-1/2 Ising counterpart. The possible reentrant phenomena displayed by the system due to the competition effects that occur for appropriate ranges of the random and transverse fields are investigated. |
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| Keywords: | 75.10.Dg 75.10.Hk 75.40.Mg |
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