Polarization properties of ferroelectric thin films on transverse ising model

2008 ◽  
Vol 245 (11) ◽  
pp. 2599-2604 ◽  
Author(s):  
Punan Sun ◽  
Tianquan Lü ◽  
Hui Chen ◽  
Wenwu Cao
Keyword(s):  
Thin Films ◽  
Ising Model ◽  
Ferroelectric Thin Films ◽  
Transverse Ising Model

ION DOPING EFFECTS ON THE DIELECTRIC AND PHONON PROPERTIES OF (Ba, Sr)TiO3 THIN FILMS

2011 ◽  
Vol 25 (25) ◽  
pp. 3289-3301 ◽  
Author(s):  
J. M. WESSELINOWA
Keyword(s):  
Thin Films ◽  
Dielectric Constant ◽  
Ising Model ◽  
Exchange Interactions ◽  
Function Technique ◽  
Transverse Ising Model ◽  
Bst Thin Films ◽  
Doping Effects ◽  
Ion Doping ◽  
Phonon Properties

The exact mechanism by which doping ions change the properties in (BST) thin films is not fully understood. We have shown based ( Ba , Sr ) TiO 3 on the transverse Ising model including anharmonic spin–phonon interactions and using a Green's function technique that the dielectric constant and the phonon properties can be changed due to different exchange interactions between the doping ions and the host ions in BST thin films. They are highly dependent upon the magnitude and the kind of the stress (tensile or compressive) due to the different radii of the doping ions. The phonon energies can be larger or smaller for different doping ions, whereas their damping is always enhanced.

scholarly journals Investigation of domain structure in ferroelectric thin films by means of the Ising model

2021 ◽  
Vol 1730 (1) ◽  
pp. 012041
Author(s):  
E V Menshikov ◽  
O G Maksimova ◽  
S V Osipov ◽  
A V Maksimov
Keyword(s):  
Thin Films ◽  
Ising Model ◽  
Domain Structure ◽  
Ferroelectric Thin Films

Monte Carlo simulation of polarization switching in ferroelectric thin films by a realistic kinetic Ising model

1997 ◽  
Vol 197 (1) ◽  
pp. 39-42 ◽  
Author(s):  
Jianshe Liu ◽  
Xtngjiao Li ◽  
Jianhong Zhao ◽  
Longbo Huang ◽  
Xin Huang ◽  
...  
Keyword(s):  
Thin Films ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Ising Model ◽  
Polarization Switching ◽  
Ferroelectric Thin Films ◽  
Kinetic Ising Model

LAYER POLARIZATIONS AND DIELECTRIC SUSCEPTIBILITIES OF ANTIFERROELECTRIC THIN FILMS

2003 ◽  
Vol 17 (25) ◽  
pp. 1343-1347 ◽  
Author(s):  
J. M. WESSELINOWA ◽  
S. TRIMPER
Keyword(s):  
Thin Films ◽  
Surface Layer ◽  
Ising Model ◽  
Green’S Function ◽  
Green's Function ◽  
Low Temperatures ◽  
Transverse Field ◽  
Thermal Fluctuations ◽  
Ferroelectric Thin Films ◽  
Function Technique

The polarization and susceptibility of thin antiferroelectric films are presented using a Green's function technique within an Ising model in a transverse field. Both quantities vary with the numbers of layers. Whereas at low temperatures the suceptibilty of the surface layer increases stronger than that of the second layer, the polarization of the surface is smaller compared to the polarization of the second layer. Such behavior has no counterpart in ferroelectric thin films. The effect is attributed to inhomogeneous thermal fluctuations.

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