한국결정성장학회:학술대회논문집 (Proceedings of the Korea Association of Crystal Growth Conference)

한국결정성장학회 (The Korea Association of Crystal Growth)
권호 표지

Doping Effects of Mg and/or Fe ions on Congruent $LiNbO_3$ Single Crystal Growth

  • Bae, So-Ik (R&D Center, SSang Yong Cement Co.) ;
  • J. Ichikawa (Institute for Material Research, Tohoku University) ;
  • K. Shimamura (Institute for Material Research, Tohoku University) ;
  • H. Onodera (Institute for Material Research, Tohoku University) ;
  • T. Fukuda (Institute for Material Research, Tohoku University)
  • 발행 : 1997.06.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The doping effects of Mg and/or Fe ions on congruent LiNbO$_3$ single crystal growth were studied in order to clarify the roles of MgO in Fe doped LiNbO$_3$ single crystals. The effective distribution coefficienct of Fe was found decreased drastically from 0.85 to 0.5 by the addition of MgO into the LiNbO$_3$ melt. M ssbauer spectra revealed that the addition of MgO reduces the occurrence of Fe2+ ions during growth in air. Therefore, it is likely that there would be two important roles of MgO in Fe doped LiNbO$_3$. One is to suppress the incorporation of all Fe ions, and the other is to reduce the concentration of Fe2+ ions among the total Fe ions.

키워드