Piezoelectric Properties of Bismuth Layered-Structure Ferroelectric Bi2WO6 Mono-Domain Crystals

Author

Nishida, M. ; Sakaguchi, Y. ; Takeda, H. ; Nishida, T. ; Uchiyama, K. ; Shiosaki, T.

Author_Institution

Nara Inst. of Sci. & Technol., Ikoma

fYear

2007

fDate

27-31 May 2007

Firstpage

592

Lastpage

593

Abstract

Bismuth tungstate, Bi₂WO₆(BWO), mono-domain crystals grown by a slow cooling technique were characterized. Observation of the etch-pit patterns of all the crystal substrate surfaces confirmed that the grown crystals consisted of a mono-domain fabric. The electromechanical coupling factor, k₃₁, and mechanical quality factor, Q_m, of the crystals were 24% and over 4000 at room temperature, respectively. The resonance response revealed that the BWO crystals maintained the piezoelectricity up to 400degC.

Keywords

Q-factor; bismuth compounds; cooling; ferroelectric materials; ferroelectricity; piezoelectricity; Bi₂WO₆; bismuth layered-structure ferroelectric; cooling technique; crystal substrate surfaces; electromechanical coupling factor; etch-pit patterns; mechanical quality factor; monodomain crystals; piezoelectric properties; piezoelectricity; temperature 293 K to 298 K; temperature 400 C; Bismuth; Cooling; Crystals; Etching; Fabrics; Ferroelectric materials; Piezoelectricity; Q factor; Resonance; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on

Conference_Location

Nara

ISSN

1099-4734

Print_ISBN

978-1-4244-1334-8

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2007.4393339

Filename

4393339