用微探针拉曼光谱研究丙氨酸和缬氨酸掺杂TGS晶体的不均匀性

Proceedings of 1994 IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1994-08-07 DOI:10.1109/ISAF.1994.522503

B. Jin, S. Erdei, A. Bhalla

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引用次数: 0

摘要

微探针拉曼光谱用于研究丙氨酸掺杂TGS晶体的位置不均匀性。在b平面沿c轴和a轴测量20个数据点。几个已知的拉曼峰被观测到没有变化，但大多数其他的峰被发现有显著的变化。发现光谱的主要差异与SO/sub 4/振动有关。振动频率在种子位置附近降低。最不稳定的光谱是在种子区附近检测到的。

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Inhomogeneity study of alanine and valine-doped TGS crystal using micro-probe Raman spectroscopy

Micro-probe Raman spectroscopy is used for studying positional inhomogeneity in alanine-doped TGS crystals. 20 data points are measured along the c- and a-axes in b-plane. Several known Raman peaks are observed unchanged, but most other peaks are found to be changed remarkably. The major difference in spectra are found to be related to SO/sub 4/ vibrations. The vibrational frequencies are found to be lowered near the seed position. The most unstable spectra are detected in the vicinity of the seed region.

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Proceedings of 1994 IEEE International Symposium on Applications of Ferroelectrics

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