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摘要: 本文综合我们从NH3F（氟化胺）、HCCl3（氯仿）、HCBr3（溴仿）、S8（硫）和C3N6H6（三聚氰胺）等分子晶体获得的高压Raman光谱数据，讨论了分子晶体Raman光谱的谱带强度，频率位移，晶场劈裂和Grneisen常数等对压力的依赖关系。总结了分子晶体压致结构相变的光谱证据和高压新相结构确定的几种方法。Abstract: Pressure dependence on the intensities and frequency of Raman bonds, crystal field splitting and mode-Grneisen parameter were discussed. Raman data were taken from our experiments on NH3F, HCCl3, HCBr3, S8 and C3N6H6 et al. Raman spectroscopic evidence for pressure induced structure phase transition of molecule crystal and the methods to determine new phase under high pressure were summed up.
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Key words:
- molecule crystal /
- Raman spectra /
- structure phase transition
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Zou Guangtain, Zhao Yongnain, Cui Qilang, et al. Solid State Physics under Pressure. Edited by S Mimonura. Terra Scientific Publishing Company, 1985: 191. Zhao Yongnain, Luo Huan, Lu Xianyi, et al. Physica B, 1986, 139-140: 526. Wang Lizhong, Zhao Yongnain, Lu Ren, et al. High-Pressure Research in Mineral Physics. Edited by M H Manghnani, Y Syono. Tokyo: Terra Scientific Publishing Company (TERRAPUB), 1986: 299. Zallen R, Slade M L. Phys Rev B, 1978, 18: 5775. Boyle L L, Lawrrnson J E. Acta Crysttogr Sect, 1972, A28: 485. Boyle L L, Lawrrnson J E. Acta Crysttogr Sect, 1972, A28: 489. -
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