TY - JOUR
T1 - Effects of Al substitution for Ca3Ta(Ga1−xAlx)3Si2O14 piezoelectric single crystals
AU - Yokota, Yuui
AU - Ohashi, Yuji
AU - Kudo, Tetsuo
AU - Kochurikhin, Vladimir V.
AU - Medvedev, Andrey
AU - Kurosawa, Shunsuke
AU - Kamada, Kei
AU - Yoshikawa, Akira
N1 - Funding Information:
This work was partially supported by the New Energy and Industrial Technology Development Organization (NEDO), Ministry of Education, Culture, Sports, Science and Technology of Japanese government, Grant-in-Aid for Young Scientists (A), 15H05551, Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) and Adaptable & Seamless Technology Transfer Program through Target-driven R&D [A-STEP](JST).
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/6/15
Y1 - 2017/6/15
N2 - 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 0≤x≤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.
AB - 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 0≤x≤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.
KW - A1. X-ray diffraction
KW - A2. Growth from melt
KW - B1. Oxides
KW - B2. Piezoelectric materials
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U2 - 10.1016/j.jcrysgro.2016.10.044
DO - 10.1016/j.jcrysgro.2016.10.044
M3 - Article
AN - SCOPUS:85003030720
VL - 468
SP - 321
EP - 325
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
ER -