钛酸钡晶体生长研究  

Study on the Growth of BaTiO_3 Crystal

作　　者：王四亭[1] 朱洪滨[1] 朱烨 侯印春[1] 

机构地区：[1]中国科学院上海光学精密机械研究所

出　　处：《人工晶体学报》1995年第1期15-19,共5页Journal of Synthetic Crystals

摘　　要：本文介绍了采用感应加热顶部籽晶法生长ＢａＴｉＯ＿３晶体的工艺技术。根据稳态引上法生长晶体的热平衡原理，设计了合理的生长装置，使得晶体能够在保持加热功率不变的情况下稳定生长，获得了大尺寸（Φ２０～２５ｍｍ×１５ｍｍ）的ＢａＴｉＯ＿３晶体。阐述了感应加热和通常使用的电阻加热法的区别，指出了本方法的优点。对生长出的晶体进行结构测试，居里温度测定和偏振拉曼谱的测量。The growth of BaTiO_3(BTO)crystals by top-seeding method is presented.Based on the theory of thermal equilibrium on crystal growth by CZ method,a growth arrangement with reasonable thermal field has been set up with induction heating.The crystals are grown under the condition of constant heat power supply.Good optical quality BTO crystals have been obtained 20～25mm in diameter and 1 0～15mm high,and the results of the determination on the crystal structure ,Curie temperature as well as Raman polerized spectrum are presented.

关 键 词：光折变 晶体 钛酸钡晶体 引上法 晶体生长 

分 类 号：O743.3[理学—晶体学] O782