Growth of La3-xBaxTa0.5+x/2Ga 5.5-x/2O14 compounds for the high-temperature piezoelectric applications

Il Hyoung Jung, Won Jae Yang, Akira Yoshikawa, Tsuguo Fukuda, Keun Ho Auh

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Alkali-earth ion (Ba2+) substituted La3Ta 0.5Ga5.5O14 (LTG) crystals with a chemical formula of La3-xBaxTa0.5+x/2Ga 5.5-x/2O14 (LBTG), suitable for piezoelectric applications, were grown by the micro-pulling-down (μ-PD ) and Czochralski technique. Powder X-ray diffraction analysis had been shown that Ba 2+ could be substituted for La3+ up to x=0.2 in LTG crystals. A structure analysis revealed that Ba atoms are mainly distributed in decahedral sites occupied by La atoms. Grown LBTG crystals showed higher value of d14 and K12 than LTG.

Original languageEnglish
Pages (from-to)40-47
Number of pages8
JournalJournal of Crystal Growth
Volume262
Issue number1-4
DOIs
Publication statusPublished - 2004 Feb 15

Keywords

  • A1. Crystal structure
  • A2. Single crystal growth
  • B1. Oxides
  • B2. Piezoelectric materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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