Influence of Growth Atmospheres on Characteristics of <TEX>$Langasite(La_3Ga_5SiO_{14})$</TEX> Single Crystals

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J. Korean Ceram. Soc. > Volume 36(12); 1999 > Article

Journal of the Korean Ceramic Society 1999;36(12): 1364.

성장분위기에 따른 $La_3Ga_5SiO_{14}$ 단결정의 특성

정일형, 안진호, 오근호¹, T. Fukuda²

한양대학교 세라믹공정연구센터
¹한양대학교 세라믹공정연구센
²일본동북대학교 금속재료연구소

Influence of Growth Atmospheres on Characteristics of $Langasite(La_3Ga_5SiO_{14})$ Single Crystals

ABSTRACT

Langasite( La3Ga5SiO14) is suitable for new piezoelectric properties. Langasite can be applied for communication de-vices due to intermediate piezoelectric properties which are similar to those of quartz and LiTaO3 in its acoustic cha-racteristics. In this study Langasite( La3Ga5SiO14) single crystals were successfully grown by using self-designed Czo-chralski system. From the results of optical properties it was found that crystals having a high quality and higher optical transmittance were grown at atmosphere of 1 to 30 vol% of oxygen content.

Key words: $Langasite(La_3Ga_5SiO_{14})$, Czochralski, Optical Properties