Single crystal growth of rare-earth gallates and epitactic growth nature of high-Tc superconducting YBCO thin films on them

S. Miyazawa, M. Sasaura, M. Mukaida

研究成果: Contribution to journalArticle

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Rare-earth gallates, NdGaO3 and PrGaO3, as substrates lattice-matched to superconducting YBCO thin films are grown using a Czochralski pulling technique. NdGaO3 was twin-free, while PrGaO3 was badly twinned. Twinning in PrGaO3 is presumably due to the first-order phase transition below the melting temperature. On twin-free NdGaO3 substrates, the initial growth stages of YBCO ultrathin films are observed by an atomic force microscope (AFM). AFM reveals that the growth mode is of Stranski-Krastanov, showing two-dimensional lateral growth and subsequent three-dimensional island formation, where the growth unit is one or multiples of the c-axis cell length in height.

元の言語英語
ページ(範囲)704-708
ページ数5
ジャーナルJournal of Crystal Growth
128
発行部数1-4 PART 2
DOI
出版物ステータス出版済み - 3 1 1993
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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