Synthesis and Electric Properties of Alminum Substituted Langasite-type La3Nb0.5Ga5.5O14 Single Crystals

Author

Kuze, T. ; Takeda, H. ; Nishida, T. ; Uchiyama, K. ; Shiosaki, T.

Author_Institution

Nara Inst. of Sci. & Technol., Nara

fYear

2007

fDate

27-31 May 2007

Firstpage

594

Lastpage

595

Abstract

Al-substituted La₃Nb_0.5Ga_5.5O₁₄ (La₃Nb_0.5Ga_5.5-xAl_xO₁₄; LNGA_x) single crystals were synthesized by the conventional Czochralski technique. The solubility limit of x=0.2 have been grown The electric properties of the LNGAx crystals were investigated and compared with those of LNG. By Al substitution, the electromechanical coupling factors (k₁₂) became slightly larger. The LNGAx crystals showed a lower temperature dependence of d₁₁ and a higher electric resistivity rho than those of the LNG crystals.

Keywords

crystal growth from melt; electrical resistivity; electromechanical effects; lanthanum compounds; niobium compounds; piezoelectricity; solubility; Czochralski technique; La₃Nb_0.5Ga_5.5-xAl_xO₁₄; aluminum substituted langasite-type single crystals; electric properties; electric resistivity; electromechanical coupling factors; piezoelectric constant; solubility; Crystals; Electric resistance; Liquefied natural gas; Materials science and technology; Powders; Resonance; Temperature dependence; Temperature sensors; Vibration measurement; X-ray scattering;

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.2007.4393340

Filename

4393340