Anisotropic permittivity extraction from phase propagation measurements using an anisotropic full-wave Green's function solver for coplanar ferroelectric thin film devices

2002 ◽  
Author(s):  
C.M. Krowne ◽  
S.W. Kirchoefer ◽  
J.M. Pond
Keyword(s):  
Thin Film ◽  
Green’S Function ◽  
Green's Function ◽  
Ferroelectric Thin Film ◽  
Full Wave ◽  
Phase Propagation ◽  
Thin Film Devices

Green's Function Approach to Crossover Properties for Interaction Parameters of an N-Layer Ferroelectric Thin Film

2010 ◽  
Vol 152-153 ◽  
pp. 116-120
Author(s):  
Zhao Xin Lu ◽  
Bao Hua Teng ◽  
Xin Yang
Keyword(s):  
Thin Film ◽  
Phase Diagram ◽  
Green’S Function ◽  
Green's Function ◽  
Ferroelectric Thin Film ◽  
Higher Order ◽  
Interaction Parameters ◽  
Mean Field Approximation ◽  
Decoupling Approximation ◽  
Dominant Phase

Utilizing the higher order decoupling approximation to the Fermi-type Green’s function, crossover properties of interaction parameters of an n-layer ferroelectric thin film from the ferroelectric-dominant phase diagram (FPD) to the paraelectric-dominant phase diagram (PPD) are investigated on the basis of the transverse Ising model. The curved surfaces for crossover values of interaction parameters of a thin film with certain layers are constructed in the three-dimensional parameter space. Because both the z-component <Sz> (the polarization) and the transverse component <Sx> of the spin are further included in the eigenfrequency, the results are in agreement with that of the effective-field theory with correlations to some extent. It shows that the higher order decoupling approximation diminishes the ferroelectric feature of a ferroelectric thin film compared with the usual mean-field approximation.

Properties of Soft BaTiO3 Ceramics for Ferroelectric Thin Film Devices

1999 ◽  
Vol 169-170 ◽  
pp. 119-122
Author(s):  
Kunihiro Nagata ◽  
Jirawat Thongrueng ◽  
Toshio Tsuchiya ◽  
Yasuichi Masuda ◽  
S. Fujita
Keyword(s):  
Thin Film ◽  
Ferroelectric Thin Film ◽  
Thin Film Devices
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