Dynamic Response of the Electro-Optic Effect in Epitaxial Ferroelectric Thin Films

1999 ◽  
Vol 597 ◽  
Author(s):  
B. H. Hoerman ◽  
J. C. Majewski ◽  
B. M. Nichols ◽  
A. Teren ◽  
B. W. Wessels
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Dynamic Response ◽  
Applied Electric Field ◽  
Physical Mechanism ◽  
Ferroelectric Thin Films ◽  
Epitaxial Thin Films ◽  
Electronic Polarizability ◽  
Electro Optic ◽  
Logarithmic Dependence

AbstractThe dynamic response of the electro-optic coefficients and the electronic polarizability for epitaxial thin films of KnbO3 and BaTiO3 are measured. For these two systems a logarithmic dependence of the electro-optic response and the polarization on time was observed after removal of an applied electric field. The dynamic response of the electro-optic effect and the polarization of the films are attributed to the same physical mechanism, which we associate with the dynamic response of ferroelectric nanodomains.

Nanoscale electromechanical phenomena in ferroelectric thin films

2000 ◽  
Vol 655 ◽  
Author(s):  
C. S. Ganpule ◽  
A. L. Roytburd ◽  
V. Nagarajan ◽  
A. Stanishevsky ◽  
J. Melngailis ◽  
...  
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Atomic Force Microscope ◽  
Applied Electric Field ◽  
Focused Ion Beam ◽  
Piezoelectric Effect ◽  
Ion Beam ◽  
Surface Displacement ◽  
Ferroelectric Thin Films ◽  
Atomic Force

AbstractFocused ion beam milling was used to fabricate ferroelectric islands in Pb-Zr-Ti-O thin films. The islands ranged in size from 200μm×200μm to 0.3μm×0.3μm. The inverse piezoelectric effect was studied in these islands as a function of their size by tracking the surface displacement of the top electrode of the island (under an applied electric field) using an atomic force microscope (AFM). It was found that there was a substantial increase in the piezoresponse as the size of the island decreased below 100μm×100μm. This increase was attributed to the elastic deformation of the substrate.

Terahertz electro-optic properties of PbZr0.52Ti0.48O3 and BaTiO3 ferroelectric thin films

2014 ◽  
Vol 105 (11) ◽  
pp. 112903 ◽  
Author(s):  
Lei Chen ◽  
Yuan Zhang ◽  
Quan Guo ◽  
Dongwen Zhang ◽  
Xiangli Zhong ◽  
...  
Keyword(s):  
Thin Films ◽  
Ferroelectric Thin Films ◽  
Electro Optic

Shape of piezoelectric hysteresis loop for non-ferroelastic switching

2003 ◽  
Vol 784 ◽  
Author(s):  
A. K. Tagantsev ◽  
P. Muralt ◽  
J. Fousek
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Hysteresis Loop ◽  
Single Crystals ◽  
Applied Electric Field ◽  
Piezoelectric Coefficient ◽  
Hysteresis Loops ◽  
Simple Theory ◽  
The Difference

ABSTRACTA simple theory for the shape of the piezoelectric hysteresis loops (piezoelectric coefficient d vs. applied electric field E) is developed for the case of non-ferroelelastic 180° switching in ferroelectrics. The theory provides explanations for specific features of piezoelectric hysteresis loops, which have been observed in single crystals, thin films and in ceramics in particular. The piezoelectric coefficient may show a “hump”, i.e. when E decreases from the tip of the loop down to zero, d passes through a maximum, and a “nose”, i.e. a self-crossing of the loop close to its tips. The theory also explains the difference in the coercive fields seen in the polarization and piezoelectric loops.

The enhanced piezoelectricity in compositionally graded ferroelectric thin films under electric field: A role of flexoelectric effect

2018 ◽  
Vol 123 (8) ◽  
pp. 084103 ◽  
Author(s):  
Ye Qiu ◽  
Huaping Wu ◽  
Jie Wang ◽  
Jia Lou ◽  
Zheng Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Ferroelectric Thin Films ◽  
Flexoelectric Effect

Linear electro-optic effect in ferroelectric HfO2-based epitaxial thin films

2021 ◽  
Author(s):  
Shinya Kondo ◽  
Reijiro Shimura ◽  
Takashi TERANISHI ◽  
Akira Kishimoto ◽  
Takanori Nagasaki ◽  
...  
Keyword(s):  
Thin Films ◽  
Epitaxial Thin Films ◽  
Electro Optic

Measurement of electro-optic properties of ferroelectric thin films using the ultimate ellipsometer

1995 ◽  
Vol 11 (1-4) ◽  
pp. 69-80 ◽  
Author(s):  
G. Teowee ◽  
C. D. Baertlein ◽  
John T. Simpson ◽  
Tianji Zhao ◽  
M. Mansuripur ◽  
...  
Keyword(s):  
Thin Films ◽  
Ferroelectric Thin Films ◽  
Electro Optic

Comparison between Ferromagnetic and Ferroelectric Optical Switch Devices in Terms of the Response to the Electric Field

2018 ◽  
Vol 23 ◽  
pp. 1-7
Author(s):  
Rabi Noori Hammudi ◽  
Sudad Salman Al-Bassam ◽  
Rawa Khalil Ibrahim ◽  
Aseel Ibrahim Mahmood ◽  
Peter Kopčanský ◽  
...  
Keyword(s):  
Magnetic Material ◽  
Electric Field ◽  
Response Time ◽  
Applied Electric Field ◽  
Optical Switch ◽  
Ferroelectric Material ◽  
Optical Effect ◽  
Constituent Material ◽  
Electro Optic ◽  
The Difference

In this work we have studied the electro-optical effect of two types of ferronematic nanoparticles. The first sample doped with magnetic material Fe3O4 and the second sample doped with a ferroelectric material SbSI. The difference in the two types of material that has been vaccinated led to different values of electro-optic properties because of the different susceptibility of materials. We have noticed that the material SbSI was more responsive to the applied electric field due to the nature of the constituent material (electric material) than the Fe3O4 ferromagnetic. The response time for the material SbSI is less than the response time of the ferromagnetic Fe3O4, that led to make the material SbSI best in the optical switch applications.

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