Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5489588 | Journal of Crystal Growth | 2017 | 5 Pages |
Abstract
Ca3Ta(Ga1-xAlx)3Si2O14 [CTGAS] material is a piezoelectric material belonging to the Langasite-type group (space group: P321).and the CTGAS single crystals (x=0, 0.25, 0.50, 0.75) with a diameter of 1 in. were grown by a Czochralski [Cz] method using an Ir crucible under Ar+2%O2. The CTGAS single crystals without any cracks could be grown using a CTGAS seed crystal in the x range of 0â¤xâ¤0.75. Cell parameters, a and c, decrease while the a/c ratio increased with the Al concentration. Piezoelectric constant d11 and electromechanical coupling factor k12 for the X-cut specimens of the CTGAS single crystals were increased by the Al substitution.
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Condensed Matter Physics
Authors
Yuui Yokota, Yuji Ohashi, Tetsuo Kudo, Vladimir V. Kochurikhin, Andrey Medvedev, Shunsuke Kurosawa, Kei Kamada, Akira Yoshikawa,