近化学计量比LiNbO3晶体畴结构研究

人工晶体学报, 2006, 35(1): 119-122. doi: 10.3969/j.issn.1000-985X.2006.01.027

近化学计量比LiNbO3晶体畴结构研究

姚淑华 ^1, , 胡小波 ^2, , 高磊 ^3, , 刘宏 ^4, , 王继扬 ^5,

1.山东大学晶体材料国家重点实验室,济南,250100

2.山东大学晶体材料国家重点实验室,济南,250100

3.山东大学晶体材料国家重点实验室,济南,250100

4.山东大学晶体材料国家重点实验室,济南,250100

5.山东大学晶体材料国家重点实验室,济南,250100

基金项目: 国家科技攻关项目(2002AA311110)

关键词：近化学计量比LiNbO3晶体 , 异常散射 , 畴结构

Study on Domain Structures in Near-stoichiometric LiNbO3 Crystals

利用提拉法,从富锂(Li2O:Nb2O5=58.5:41.5)熔体中生长了φ40mm×40mm的近化学计量比铌酸锂晶体.用同步辐射异常散射技术结合化学腐蚀法观察了晶体中的畴结构,在y方向发现存在180°反向铁电畴结构,而另外的N-SLN单晶z向切片为单畴结构,表明了所生长的近化学计量比铌酸锂晶体具有区域性单畴.

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近化学计量比LiNbO3晶体畴结构研究

Study on Domain Structures in Near-stoichiometric LiNbO3 Crystals

参考文献