Coherent anti-Stokes Raman scattering spectroscopy of solid nitrogen to 22 GPa
文献类型：期刊论文
| 作者 | Hellwig, H ; Daniels, WB ; Hemley, RJ ; Mao, HK ; Gregoryanz, E ; Yu, ZH |
| 刊名 | JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2001 |
| 卷号 | 115期号:23页码:10876 |
| 关键词 | X-RAY-DIFFRACTION HIGH-PRESSURE PHASES N-2 TEMPERATURE SPECTRUM BEHAVIOR 300-K N2 |
| ISSN号 | 0021-9606 |
| 通讯作者 | Hellwig, H: Carnegie Inst Washington, Geophys Lab, 5251 Broad Branch Rd NW, Washington, DC 20015 USA. |
| 中文摘要 | The Raman-active vibron modes of solid nitrogen have been investigated by coherent anti-Stokes Raman scattering (CARS) spectroscopy to 22 GPa at room temperature. Frequencies and linewidths were measured with an accuracy of 0.1 to 0.2 cm(-1). From the pressure dependence of the linewidths a dynamical model for the transitions between the delta, delta (loc), and epsilon phases has been developed. These phase transitions are characterized by different degrees of ordering of the N(2) molecules. The processes can be described by an increase in the orientational order with increasing pressure and a decrease in number in the rotational degrees of freedom at the phase transitions coupled with changes in crystal structure. A structural model for the delta (loc) phase is given, in which the delta-delta (loc)-epsilon transition sequence arises from a group/subgroup relationship and can therefore be considered ferroelastic in nature. Sample annealing was found to have a significant effect on the results. (C) 2001 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34816]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Hellwig, H,Daniels, WB,Hemley, RJ,et al. Coherent anti-Stokes Raman scattering spectroscopy of solid nitrogen to 22 GPa[J]. JOURNAL OF CHEMICAL PHYSICS,2001,115(23):10876. |
| APA | Hellwig, H,Daniels, WB,Hemley, RJ,Mao, HK,Gregoryanz, E,&Yu, ZH.(2001).Coherent anti-Stokes Raman scattering spectroscopy of solid nitrogen to 22 GPa.JOURNAL OF CHEMICAL PHYSICS,115(23),10876. |
| MLA | Hellwig, H,et al."Coherent anti-Stokes Raman scattering spectroscopy of solid nitrogen to 22 GPa".JOURNAL OF CHEMICAL PHYSICS 115.23(2001):10876. |
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来源：物理研究所
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