Elastic properties study of single crystal NH3 up to 26?GPa
文献类型:期刊论文
作者 | Li, FF; Duan, D; Li, M; Ma, CL; Cui, QL; Cui, T; Zhou, Q; Li, XD; Li, YC; Liu, J |
刊名 | JOURNAL OF RAMAN SPECTROSCOPY
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出版日期 | 2012 |
卷号 | 43期号:4页码:526-531 |
关键词 | ammonia high pressure Brillouin scattering elastic modulus Raman scattering |
英文摘要 | Single crystal Brillouin and Raman scattering measurements on NH3 in a diamond anvil cell have been performed under pressures up to 26?GPa at room temperature. The pressure dependencies of acoustic velocity, adiabatic elastic constants, and bulk moduli of ammonia from liquid to solid III and solid IV phase have been determined. All the nine elastic constants in orthorhombic structure phase IV were presented for the first time, each elastic constant grows monotonously with pressure and a crossover of the off-diagonal moduli C12 and C13 was observed at around 12?GPa because of their different pressure derivative values. We also performed ab initio simulations to calculate the bulk elastic moduli for orthorhombic ammonia, the calculated bulk moduli agree well with experimental results. In Raman spectra the very weak bending modes ?2 and ?4 for orthorhombic ammonia are both observed at room temperature, a transition point near 12?GPa is also found from the pressure evolution of the Raman bands. Copyright (c) 2011 John Wiley & Sons, Ltd. |
学科主题 | Spectroscopy |
收录类别 | SCI |
WOS记录号 | WOS:000302952800010 |
公开日期 | 2016-05-03 |
源URL | [http://ir.ihep.ac.cn/handle/311005/224006] ![]() |
专题 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | Li, FF,Duan, D,Li, M,et al. Elastic properties study of single crystal NH3 up to 26?GPa[J]. JOURNAL OF RAMAN SPECTROSCOPY,2012,43(4):526-531. |
APA | Li, FF.,Duan, D.,Li, M.,Ma, CL.,Cui, QL.,...&刘景.(2012).Elastic properties study of single crystal NH3 up to 26?GPa.JOURNAL OF RAMAN SPECTROSCOPY,43(4),526-531. |
MLA | Li, FF,et al."Elastic properties study of single crystal NH3 up to 26?GPa".JOURNAL OF RAMAN SPECTROSCOPY 43.4(2012):526-531. |
入库方式: OAI收割
来源:高能物理研究所
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