Raman scattering and X-ray diffraction studies on phase III of solid hydrogen
Raman scattering and X-ray diffraction studies on phase III of solid hydrogen
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DOI：
10.1088/1742-6596/950/4/042060
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发表时间：
2017-10
期刊：
影响因子：
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通讯作者：
Y. Akahama;Y. Mizuki;S. Nakano;N. Hirao;Y. Ohishi
中科院分区：
文献类型：
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作者：
Y. Akahama;Y. Mizuki;S. Nakano;N. Hirao;Y. Ohishi
利用金刚石压砧拉曼规，在300 GPa和190 GPa的压力下，通过低温拉曼散射和X射线粉末衍射实验，研究了固态氢III相的结构。观察到的分裂的低频拉曼带在230 GPa左右的hcp型结构在第三阶段，而X-射线衍射数据提出，分子中心位于附近的hcp的晶格点高达190 GPa的建议明显的晶格变形。
The structure of the phase III of solid hydrogen has been investigated from Raman scattering and X-ray powder diffraction experiments at low temperature based on the diamond anvil Raman gauge at pressures up to 300 GPa and 190 GPa, respectively. Observed splitting of low frequency Raman bands at around 230 GPa has suggested distinct lattice deformation of the hcp-like structure in phase III while X-ray diffraction data proposed that the molecular center was located in the vicinity of lattice points of hcp up to 190 GPa.