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

We grew column-shaped Sr 3 NbGa 3 Si 2 O 14 (SNGS) and Sr 3 TaGa 3 Si 2 O 14 (STGS) langasite-type piezoelectric single crystals by the micro-pulling-down (μ-PD) method. 3-mm-diameter SNGS and STGS crystals were grown using a Pt-Rh crucible with a 3-mm-diameter columnar die. According to X-ray rocki...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2012-09, Vol.59 (9), p.1864-1867
Main Authors: Yokota, Y., Sato, M., Futami, Y., Tota, K., Onodera, K., Yanagida, T., Yoshikawa, A.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Crystals
Exact sciences and technology
Growth from melts
zone melting and refining
Lattices
Materials science
Methods of crystal growth
physics of crystal growth
Periodic structures
Physics
Powders
Scanning electron microscopy
X-ray diffraction
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Summary:We grew column-shaped Sr 3 NbGa 3 Si 2 O 14 (SNGS) and Sr 3 TaGa 3 Si 2 O 14 (STGS) langasite-type piezoelectric single crystals by the micro-pulling-down (μ-PD) method. 3-mm-diameter SNGS and STGS crystals were grown using a Pt-Rh crucible with a 3-mm-diameter columnar die. According to X-ray rocking curve measurements, the grown crystals had crystallinity equivalent to that of crystals grown by the Czochralski (Cz) method. The crystals were single-phase materials with langasite-type crystal structure. The lattice parameters of the grown crystals were almost consistent with those of crystals grown by the Cz method.
ISSN:0885-3010
1525-8955
DOI:10.1109/TUFFC.2012.2397