Please use this identifier to cite or link to this item:
Title: Transition regions in the parameter space based on the transverse Ising model with a four-spin interaction
Authors: Teng, B.H. 
Sy, H.K. 
Issue Date: 1-Dec-2005
Citation: Teng, B.H., Sy, H.K. (2005-12-01). Transition regions in the parameter space based on the transverse Ising model with a four-spin interaction. Europhysics Letters 72 (5) : 823-829. ScholarBank@NUS Repository.
Abstract: By taking into account the four-spin interaction in the transverse Ising model (TIM), the transition feature of the ferroelectric thin film is investigated within the framework of the Green's function technique. Various transition regions in the parameter space with respect to the ratios of the tunneling frequency and the four-spin interaction to the two-spin interaction are calculated by a higher-order decoupling approximation beyond the usual mean-field approximation. The results show that the transition regions are greatly different from the ones obtained within the framework of the mean-field approximation. It is suggested that the usual mean-field approximation exaggerates not only the second-order but also the first-order ferroelectric transition regions for a ferroelectric thin film. © EDP Sciences.
Source Title: Europhysics Letters
ISSN: 02955075
DOI: 10.1209/epl/i2005-10293-9
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Mar 20, 2019


checked on Mar 11, 2019

Page view(s)

checked on Mar 15, 2019

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.