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

The Korea Association of Crystal Growth (한국결정성장학회)
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Compositional homogeneity of potassium lithium niobate crystals grown by micro pulling down method

$\mu\textrm{m}$-PD법에 의해 육성한 KLN 단결정의 조성적 균일성

  • Dae-Ho Yoon (Dept. of Material Science and Technology, Faculty of Engineering, Iwate University, Morioka 020, Japan) ;
  • Tsuguo Fukuda (Institute of Materials Research, Tohoku University, Sendai 980, Japan)
  • Published : 1994.12.01
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Abstract

KLN crystals were grown with various melt compositions by $\mu\textrm{m}$-PD method. The composition of KLN crystals was determined by DTA and X-ray diffraction measurements. It can be obtained that KLN micro crystals have a nearly homogeneous composition along the growth axis because of the absence of convection in melt growth interface.

$\mu\textrm{m}$-PD법에 의해 융액 조성을 변화시키면서 KLN결정을 육성하였다. 육성된 결정은 DTA 측정 및 X.선 회절법에 의해 조성을 변화를 측정하였다. 이 결과로부터 $\mu\textrm{m}$-PD KLN 단결정은 육성축 방향에 따라 균일한 조성을 갖음을 알 수 있었으며, 이는 고액계면에서의 대류제의 효과에 기인된다고 사료된다.

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