Domain Wall Engineering in Potassium Niobate Single Crystals and Their Piezoelectric Properties

Keisuke Yokoh; Song Min Nam; Hirofumi Kakemoto; Takaaki Tsurumi; Hirohiko Kumagai; Satoshi Wada

doi:10.4028/www.scientific.net/KEM.320.147

Paper Titles

Phase Transition Behavior of Barium Titanate Nanoparticles
p.131

Synthesis and Characterization of BaTiO₃ Nano-Particle by Aerosol Plasma Pyrolysis Process
p.135

Size Dependence of Dielectric Properties for Barium Titanate Nanoparticles Prepared under Various Vacuum Atmospheres
p.139

Powder and Dielectric Characterization of Hydrothermally Synthesized Barium Titanate Nanopowders
p.143

Domain Wall Engineering in Potassium Niobate Single Crystals and Their Piezoelectric Properties
p.147

Development of Lead-Free Piezoelectric Materials Using Domain Wall Engineering
p.151

Morphological Design of Zinc Oxide Films Grown in Aqueous Solutions
p.155

Preparation and Characterization of Porous Alumina Film Using Sol Containing PEG
p.159

Synthesis of Carbon Nanotubes from Polycyclic Compounds by CVD Method
p.163

HomeKey Engineering MaterialsKey Engineering Materials Vol. 320Domain Wall Engineering in Potassium Niobate...

Domain Wall Engineering in Potassium Niobate Single Crystals and Their Piezoelectric Properties

Abstract:

For potassium niobate (KNbO3) single crystal, the 31 resonators with the highest piezoelectric constant d31 were designed using transformation of axis. We confirmed that the engineered domain configurations with maximum d31 of –55.1 pC/N was caused by a combination between two polarization with polar directions along [101]c and [-101]c directions. Moreover, if there are larger piezoelectric constants from domain wall region, we can expect the much higher piezoelectric properties. To induce the above domain configuration, a new poling method using patterning electrode was investigated. In this study, the two methods on the basis of temperature-induced phase transition at 207 °C and electric-field-induced phase transition at room temperature were investigated.

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Periodical:

Key Engineering Materials (Volume 320)

Pages:

147-150

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.320.147

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Online since:

September 2006

Authors:

Keisuke Yokoh, Song Min Nam, Hirofumi Kakemoto, Takaaki Tsurumi, Hirohiko Kumagai, Satoshi Wada

Keywords:

Domain Wall, Engineered Domain Configuration, Patterning Electrode, Piezoelectric Constant, Potassium Niobate, Single Crystal

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