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- W631073710 abstract "摘要 测定了白云鄂博变生及退火结晶的褐钇铌矿和褐铈铌矿的Raman光谱，并讨论了结构、成分对Raman光谱的影响.它们的Raman光谱出现在840—600，340—280及200—50cm-1的三个区，前两者为NbO3-4四面体的伸缩振动和弯曲振动频率，后者为稀土离子和NbO3-4四面体的外振动模式，通过对褐钇铌矿族矿物Raman光谱的比较分析，表明aman光谱可以有效地反映出该类矿物的结构畸变.还发现 Abstract Raman spectra of the metamict and annealing recrystallization fergusonite and brocenite, found in Baiyunobo mineral deposit in China, have been measured and discussed. The spectra give three well defined characteristic band regions. The bands in the regions 840 to 600cm-1 and 340 to 280cm-1 are assigned to NbO3-4 tetrahedron stretching and bending vibrations, respectively. While the frequencies observed below 200cm-1 are due to the external modes of the NbO3-4 and lanthanide ions. The dependence of Raman frequencies on the structure and composition of the metamict and annealing recrystallization fergusonite group minerals shows that the Raman spectra are valuable for reflecting the structure distortion of the minerals. Additionally, the strong visible photoluminescence from annealing recrystallization is observed when 514.5 or 488.0nm laser line is used as excitation source, whereas metamic fergusonite group minerals exhibit no visible photoluminescence, or weak one. 作者及机构信息 薛理辉1, 贡伟亮2 (1)武汉工业大学材料研究与测试中心，武汉 430070; (2)中国科学院贵阳地球化学研究所，贵阳 550002 基金项目: 国家自然科学基金资助的课题. Authors and contacts XUE LI-HUI1, GONG WEI-LIANG2 (1)武汉工业大学材料研究与测试中心，武汉 430070; (2)中国科学院贵阳地球化学研究所，贵阳 550002 参考文献 施引文献" @default.
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- W631073710 date "1998-01-01" @default.
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- W631073710 title "RAMAN SPECTRA AND VISIBLE PHOTOLUMINESCENCE OF THE METAMICT FERGUSONITE GROUP MINERALS IN BAIYUNOBO" @default.
- W631073710 doi "https://doi.org/10.7498/aps.47.1026" @default.
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