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

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

doi:10.1109/TUFFC.2012.2397

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

IEEE Trans Ultrason Ferroelectr Freq Control. 2012 Sep;59(9):1864-7. doi: 10.1109/TUFFC.2012.2397.

Authors

Yuui Yokota¹, Masato Sato, Yoshisuke Futami, Kazushige Tota, Ko Onodera, Takayuki Yanagida, Akira Yoshikawa

Affiliation

¹ Institute for Material Research, Tohoku University, Sendai, Japan. yokota@imr.tohoku.ac.jp

PMID: 23007751
DOI: 10.1109/TUFFC.2012.2397

Abstract

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.

Publication types

Research Support, Non-U.S. Gov't