Shaped crystal growth of langasite-type piezoelectric single crystals and their physical properties

Yuui Yokota, Akira Yoshikawa, Yoshisuke Futami, Masato Sato, Kzushige Tota, Ko Onodera, Takayuki Yanagida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We have grown the shape-controlled langasite-type crystals by the μ-PD method. Columnar-shaped La3Ta0.5Ga5.5O 14 (LTG), Ca3NbGa3Si2O14 (CNGS), Ca3TaGa3Si2O14 (CTGS), Sr3NbGa3Si2O14 (SNGS) and Sr 3TaGa3Si2O14 (STGS) crystals were grown using the Pt-Rh crucible with a columnar die in 3 mm diameter at the bottom. All grown crystals indicated high transparency and approximately 3 mm diameter. Their chemical phases was identified as a single phase of langasite-type structure and their lattice parameters were almost same as those of crystals grown by Cz method. In the X-ray rocking curve measurements, the grown crystals indicated equivalent crystallinity to the crystal grown by Cz method. In addition, the piezoelectric constant d12 of CNGS crystal was 3.98 pC/N and this value was well correlated with those of previous reports.

Original languageEnglish
Title of host publication2011 International Symposium on Applications of Ferroelectrics and 2011 International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/PFM 2011
DOIs
Publication statusPublished - 2011 Oct 5
Event2011 International Symposium on Applications of Ferroelectrics and 2011 International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/PFM 2011 - Vancouver, BC, Canada
Duration: 2011 Jul 242011 Jul 27

Publication series

Name2011 International Symposium on Applications of Ferroelectrics and 2011 International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/PFM 2011

Other

Other2011 International Symposium on Applications of Ferroelectrics and 2011 International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials, ISAF/PFM 2011
CountryCanada
CityVancouver, BC
Period11/7/2411/7/27

Keywords

  • Crystal Growth
  • Langasite
  • Micro-pulling-down method
  • Piezoelectric
  • Single Crystal

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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