TY - JOUR
T1 - Growth of shape-controlled Ca3NbGa3Si 2O14 and Sr3NbGa3Si 2O14 single crystals by micro-pulling-down method and their physical properties
AU - Yokota, Yuui
AU - Sato, Masato
AU - Tota, Kazushige
AU - Futami, Yoshisuke
AU - Yanagida, Takayuki
AU - Onodera, Ko
AU - Yoshikawa, Akira
PY - 2011/9
Y1 - 2011/9
N2 - Shape-controlled langasite-type piezoelectric single crystals, Ca 3NbGa3Si2O14 (CNGS) and Sr 3NbGa3Si2O14 (SNGS), were grown by the micropulling-down (μ-PD) method and their physical properties were investigated. Columnar-shaped CNGS and SNGS crystals with a- and c-axes in the growth direction were grown and the diameters of the grown columnar-shaped crystals were controlled to be approximately 3mm from the initial to the later part. The grown crystals without cracks indicated relatively high crystallinities and a single phase of the langasite-type structure in the powder X-ray diffraction patterns. Meanwhile, in the outside area of the crystals, parts of second phases were detected and energy dispersive X-ray spectroscopy measurements indicated that the second phases of the CNGS and SNGS crystals were the Ca-Nb-O and Sr-Nb-O systems, respectively. The d11 of the CNGS crystal indicated 3.98 pC/N, which was coincident with those of previous reports.
AB - Shape-controlled langasite-type piezoelectric single crystals, Ca 3NbGa3Si2O14 (CNGS) and Sr 3NbGa3Si2O14 (SNGS), were grown by the micropulling-down (μ-PD) method and their physical properties were investigated. Columnar-shaped CNGS and SNGS crystals with a- and c-axes in the growth direction were grown and the diameters of the grown columnar-shaped crystals were controlled to be approximately 3mm from the initial to the later part. The grown crystals without cracks indicated relatively high crystallinities and a single phase of the langasite-type structure in the powder X-ray diffraction patterns. Meanwhile, in the outside area of the crystals, parts of second phases were detected and energy dispersive X-ray spectroscopy measurements indicated that the second phases of the CNGS and SNGS crystals were the Ca-Nb-O and Sr-Nb-O systems, respectively. The d11 of the CNGS crystal indicated 3.98 pC/N, which was coincident with those of previous reports.
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U2 - 10.1143/JJAP.50.09ND03
DO - 10.1143/JJAP.50.09ND03
M3 - Article
AN - SCOPUS:80053069134
VL - 50
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 9 PART 3
M1 - 09ND03
ER -