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无机材料学报

无机材料学报

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光学浮区法生长YFeO3晶体

申 慧1,2, 徐家跃1, 郁金星3, 武安华1

  

  1. (1. 中国科学院 上海硅酸盐研究所, 上海 200050; 2. 中国科学院 研究生院, 北京 100049; 3. 上海交通大学 材料科学与工程学院, 上海 200030)

  • 收稿日期:2006-11-14 修回日期:2007-01-12 出版日期:2007-11-20 网络出版日期:2007-11-20

Floating Zone Growth of YFeO3 Single Crystals

SHEN Hui1,2, XU Jia-Yue1, YU Jin-Xing3, WU An-Hua1

  

  1. (1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China; 3. School of Materials Sciences and Engineering, Shanghai Jiaotong University, Shanghai 200030, China)

  • Received:2006-11-14 Revised:2007-01-12 Published:2007-11-20 Online:2007-11-20

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摘要： 采用光学浮区法生长了新型磁光晶体YFeO3, 通过工艺优化, 获得了φ(7～10)mm、长度约60mm的YFeO3晶体. XRD分析表明晶体具有正交钙钛矿结构, 晶格常数a=5.5964A, b=7.6052A, c=5.2842A. 晶体生长界面为凸界面, 生长取向接近[100]方向.晶体截面抛光后观察, 未发现肉眼可见的包裹体、晶界等缺陷.

关键词: 光学浮区法, 磁光材料, YFeO3晶体, 晶体生长

Abstract:

Novel magneto-optical crystal YFeO3 (yttrium orthoferrite) was grown by the floating zone method. The growth parameters were optimized and YFeO3 single crystal up to 7--10mm in diameter and 60mm in length was obtained. XRD patterns show that it has orthorhombic perovskite structure with a=5.5964A, b=7.6052A, c=5.2842A. The solid-liquid interface is convex to the melt and the growth direction is close to [100] direction. No visible inclusions and grain boundaries are observed on the polished surface.

Key words: floating zone method, magneto-optical materials, YFeO3 crystal, crystal growth

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