硅酸盐学报2009，Vol.37Issue(8)：1429-1433,5.
NaM(WO4)2(M:Bi3+,Y3+,Gd3+)晶体生长与结构
CRYSTAL GROWTH AND STRUCTURE OF NaM(WO4)2 (M:ni3+, y3+, Gd3+)
摘要
Abstract
NaBi(WO4)2 (NBW), NaY(WO4)2 (NYW) and NaGd(WO4)2 (NGW) single crystals were grown by the Czochralski method. These crystals were characterized by thermogravimetry-differential thermal analysis (TG-DTA) and X-ray diffraction (XRD).The TG-DTA curves indicate that the melting points of the NBW, NYW and NGW crystals are 937.7, 1 210.0 and 1 252.8 ℃, respec-tively. The XRD analyses show that these crystals all belong to a tetragonal system, with a scheelite-type structure and space group I41/a. The lattice parameters of NBW crystal are larger than those of NYW and NGW crystals. The inflated (IR) spectra and Raman spectra of these crystals were measured, and the vibration frequencies of the IR and Raman active modes for these crystals were as- signed. Comparison of the IR spectra and Raman spectra of these crystals reveals that the structures of NBW, NYW and NGW crys-tals are basically identical.关键词
钨酸铋钠晶体/钨酸钇钠晶体/钨酸钆钠晶体/提拉法/红外光谱/Raman光谱Key words
bismuth sodium tungstate crystal/yttrium sodium tungstate crystal/gadolinium sodium tungstate crystal/Czochralski method/Inflated spectra/Raman spectra分类
数理科学引用本文复制引用
林海,张学建,王成伟,张莹,黄德馨,曾繁明,李春,张山丽,刘景和..NaM(WO4)2(M:Bi3+,Y3+,Gd3+)晶体生长与结构[J].硅酸盐学报,2009,37(8):1429-1433,5.基金项目
总装备部项目(41312040801)资助项目. （41312040801）
