P3_121(D_3~4)空间群晶体的Raman谱研究(Ⅰ) 二元系压电晶体用Al_(1—x)Ga_xPO_4的Raman谱  

STUDY OF RAMAN SPECTRA FOR CRYSTALS WITH SPACE GROUP P3_12l(D_3~4)( I ) RAMAN SPECTRA OF TWO-COMPONENT PIEZOELECTRIC SINGLE CRYSTAL Al_(ι-x)Ga_xPO_4

作　　者：夏海瑞[1] 秦自楷[1] 李丽霞[2] 邹志强[1] 

机构地区：[1]山东大学物理系,济南250100 [2]山东大学实验中心,济南250100

出　　处：《物理学报》1993年第11期1786-1792,共7页Acta Physica Sinica

摘　　要：测得了二元系压电晶体磷酸铝镓Al_(1-x)Ga_xPO_4(x=0.12)的Raman谱,与α-ALPO_4晶体的Raman谱相比,声子频率的红移多于蓝移;E类振动的TO和LO模的劈裂明显减少,依据晶格动力学的观点解释了这些特点。The Raman spectra of two-component piezoelectric single crystal alumimium gallium phosphate A11_xGaxPO4(x=0.12) (AGP) have been obtained. and it has beeh shown that the red shifted spectrum lines exceed blue shifted ones in number and the TO/LO splittings for E modes decreases obviously in comparison with that of α-AlPO4. These features are interpreted in terms of lattice dynamics.

关 键 词：压电晶体 磷酸铝镓 散射谱 

分 类 号：O734.1[理学—晶体学]