Dielectric Properties and Hysteresis Loops of the Bilayer Ising Model

被引:0
作者
Essaoudi, I. [1 ]
Ainane, A. [1 ,2 ,3 ]
Saber, M. [1 ,2 ,4 ]
Gonzalez, J. [4 ]
机构
[1] Univ Moulay Ismail, Lab Phys Mat & Modelisat Syst LP2MS, Unite Associee CNRST, Dept Phys,Fac Sci, Meknes, Morocco
[2] Max Planck Inst Phys Complexer Syst, D-01187 Dresden, Germany
[3] Univ Padua, INFM, Dip Fis, I-54124 Padua, Italy
[4] EUPDS, Dpto Fis Aplicada 1, San Sebastian 20018, Spain
关键词
FERROELECTRIC SUPERLATTICE; SOFT MODES; THIN-FILMS; SYSTEM;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The hysteresis loops, susceptibility, and pyroelectric coefficient of a ferroelectric or ferrielectric bilayer system consisting of two monolayers (A and B) with different spins (S-A = sigma = 1/2 and S-B = S = 3/2) in the presence of the crystal field in the monolayer B have been studied. Within an unusual mean-field theory based on the probability distribution technique that accounts for the self spin correlation functions, we discuss the effects of the external longitudinal electric field on the polarization, susceptibility, and pyroelectric coefficient of the cubic lattice. We show that by a choice of the temperature the hysteresis loops can be varied over a very wide range.
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页码:561 / 573
页数:13
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