Journal of Materials Science

, Volume 27, Issue 1, pp 107–110 | Cite as

Twinning structure of LaGaO3 grown by the Czochralski method

  • J. Fink-Finowicki
  • M. Berkowski
  • A. Pajaczkowska
Papers

Abstract

Crystals of lanthanum gallate were grown by the Czochralski method and their quality was tested by microscopic observation in polarized light. This material is used as a substratum for the epitaxial growth of highTc films of YBCO, particularly for certain high-frequency device applications. Two types of twins were observed and the difference in their temperature behaviour is discussed. The best quality single crystals (practically without twins) were obtained with the 〈101〉 and 〈100〉 seeds.

Keywords

Polymer Gallate Lanthanum Microscopic Observation Epitaxial Growth 

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Copyright information

© Chapman & Hall 1992

Authors and Affiliations

  • J. Fink-Finowicki
    • 1
  • M. Berkowski
    • 1
  • A. Pajaczkowska
    • 1
  1. 1.Institute of PhysicsPolish Academy of SciencesWarsawPoland

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