掺镁铌酸锂晶体结构的研究  

A STUDY ON THE STRUCTURE OF THE CRYSTAL LiNbO 3∶MgO

作　　者：汪进[1,2] 杨昆[1,2] 金婵[1,2] 

机构地区：[1]哈尔滨工业大学应用化学系 [2]哈尔滨工业大学应用物理系

出　　处：《物理学报》1999年第6期1103-1106,共4页Acta Physica Sinica

摘　　要：通过ＬｉＮｂＯ３：ＭｇＯ（６７ｍｏｌ／ｋｇ）晶体在常温和低温下的喇曼光谱分析，研究了掺Ｍｇ２＋后晶体结构的变化情况．研究结果表明，常温下晶格略有畸变，个别的散射峰有耦合现象存在，随温度降低，耦合逐渐减少。Abstract We have investigated the structure of the crystal LiNbO 3:MgO at both low temperature and room temperature.The results showed that the crystal structure had changed little after doping of Mg 2+ .At room temperature the lattice showed distorted a little,which caused the appearance of overlaping of some individual scattering peaks.As the temperature decreased,the overlaping reduced gradually.

关 键 词：铌酸锂 晶体结构 掺镁 电光性 非线性光学 

分 类 号：O76[理学—晶体学] O73