Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Growth of new piezoelectric single crystals by the czochralski method

Czochralki법에 의한 신압전단결정의 성장

  • An, Jin-Ho (Ceramic Processing Research Center, Hanyang University) ;
  • Joo, Kyung (Ceramic Materials Research Institute, Hanyang University) ;
  • Jung, Yong-Sun (Ceramic Materials Research Institute, Hanyang University) ;
  • Auh, Keun-Ho (Ceramic Processing Research Center, Hanyang University)
  • 안진호 (세라믹공정연구센터, 한양대학교) ;
  • 주경 (세라믹소재연구소, 한양대학교) ;
  • 정용선 (세라믹소재연구소, 한양대학교) ;
  • 오근호 (세라믹공정연구센터, 한양대학교)
  • Published : 2000.12.01
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Abstract

Langasite (LGS) is a material hoped to meet needs required of new base materials for future communication devices (e.g.SAW filters). In this study, synthesis of new materials was pursued by developing new compounds with the host structure of Langasite in hopes to obtain materials with improved characteristics; compounds including $La_3$$Ta_{0.5}$$Ga_{5.5}$$O_{14}$(LTG)and $La_3$$Nb_{0.25}$$Ta_{0.25}$$Ga_{5.5}$$O_{14}$(LNTG) were synthesized by solid state reactions. Characteristics of the compound synthesized in question were determined. The single crystals of Langasite-type were grown using the Czochralski method. The growth conditions for LTG and LNTG were studied and were found to be similar to those of LGS. The growth characteristics of LNTG were observed by studying etch pit formation density along the crystal length.

Keywords

References

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