Shape-controlled crystal growth of Sr3NbGa3Si2O14 and Sr3TaGa3Si2O14 piezoelectric single crystal by micro-pulling-down method

Author

Yokota, Yuui ; Yoshikawa, Akira ; Futami, Yoshisuke ; Sato, Masato ; Tota, Kzushige ; Onodera, Ko ; Yanagida, Takayuki

Author_Institution

Inst. for Mater. Res. (IMR), Tohoku Univ., Sendai, Japan

fYear

2011

fDate

24-27 July 2011

Firstpage

1

Lastpage

3

Abstract

We have grown the shape-controlled Sr₃NbGa₃Si₂O₁₄ (SNGS) and Sr₃TaGa₃Si₂O₁₄ (STGS) langasite-type crystals by the μ-PD method. Columnar-shaped SNGS and STGS crystals were grown using the Pt-Rh crucible with a columnar die in 3 mm diameter. Grown crystals indicated high transparency and approximately 3 mm diameter. Chemical phases of grown crystals were identified as a single phase of langasite-type structure. The lattice parameters of grown crystals were almost consistent with those of crystals grown by Czochralski (Cz) method. In the X-ray rocking curve measurements, the grown crystals indicated equivalent crystallinity to the crystal grown by Cz method.

Keywords

crystal growth from melt; crystal structure; gallium compounds; lattice constants; niobium compounds; piezoelectricity; strontium compounds; tantalum compounds; transparency; Pt-Rh crucible; Sr₃NbGa₃Si₂O₁₄; Sr₃TaGa₃Si₂O₁₄; X-ray rocking curve measurements; chemical phases; columnar die; columnar-shaped SNGS crystal; columnar-shaped STGS crystal; crystallinity; langasite-type structure; lattice parameters; micropulling-down method; piezoelectric single crystal; shape-controlled SNGS langasite-type crystal; shape-controlled STGS langasite-type crystal; shape-controlled crystal growth; single phase; size 3 mm; transparency; Absorption; Chemicals; Crystals; Lattices; Powders; X-ray scattering; Langasite; Micro-pulling-down Method; Shape-controlled Crystal; Single Crystal; piezoelectric;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics (ISAF/PFM), 2011 International Symposium on and 2011 International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials

Conference_Location

Vancouver, BC

Print_ISBN

978-1-4577-1162-6

Electronic_ISBN

978-1-4577-1161-9

Type

conf

DOI

10.1109/ISAF.2011.6014150

Filename

6014150