光学浮区法生长YFeO_3晶体

Floating Zone Growth of YFeO_3 Single Crystals

采用光学浮区法生长了新型磁光晶体YFeO_3,通过工艺优化,获得了φ(7～10)mm、长度约60mm YFeO_3晶体.XRD分析表明晶体具有正交钙钛矿结构,晶格常数a=5.5964(?),b=7.6052(?),c=5.2842(?).晶体长界面为凸界面,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.

Novel magneto-optical crystal YFeO3 （yttrium orthoferrite） zone method. The growth parameters were diameter and 60mm in length was obtained optimized and YFeO3 s XRD patterns show that was grown by the floating crystal up to 7-10mm in 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.