Time-resolved crystal structure analysis of resonantly vibrating langasite oscillator

• Shinobu Aoyagi

• Hitoshi Osawa

• Kunihisa Sugimoto

• Shoichi Takeda

• Chikako Moriyoshi

• Yoshihiro Kuroiwa

抄録

The momentary crystal structure of a Y -cut langasite oscillator resonantly vibrating under an alternating electric field is revealed by time-resolved crystal structure analysis to understand the microscopic mechanism of piezoelectricity. The thickness-shear lattice strain under an electric field is amplified ∼10 3 times by the resonant effect. The lattice vibration involves the deformation of GaO 4 and Ga 0.5 Si 0.5 O 4 tetrahedra accompanied by atomic displacements of specific oxygen atoms along the electric field. The deformation of GaO 4 and Ga 0.5 Si 0.5 O 4 tetrahedra enhances the piezoelectricity of langasite.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 55 (10S), 10TC05-, 2016-08-30

  IOP Publishing

キーワード

• General Physics and Astronomy
• General Engineering

詳細情報

• CRID: 1360847874820936704
• NII論文ID: 210000147184
• DOI: 10.7567/jjap.55.10tc05
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• Web Site: http://stacks.iop.org/1347-4065/55/i=10S/a=10TC05/pdf
• Web Site: http://stacks.iop.org/1347-4065/55/i=10S/a=10TC05?key=crossref.fce753a5ff80178dd459da17b3ca8dbc
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.55.10TC05
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.55.10TC05/pdf
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  • CiNii Articles
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