Preparation of raw materials and single crystals growth of gamma-LiAlO2 and beta-LiGaO2

摘要

Abstract: In this work, the conditions for preparation of raw material as well as the conditions for crystal growth of $gamma@- LiAlO$-2$/ and $beta@-LiGaO$-2$/ by Czochralski method were studied. As a result, single crystals of these compounds were obtained. The phases were checked by x-ray powder diffraction. High vapor pressure of the melt at the pulling temperature was identified as the main problem in the growing process. Preliminary high-resolution x-ray diffraction measurements were made, which indicated a high concentration of small defects in the LiGaO$-2$/ crystals. !7