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| DOI | 10.1126/science.abb0979 |
| Attosecond spectroscopy of liquid water | |
| Inga Jordan; Martin Huppert; Dominik Rattenbacher; Michael Peper; Denis Jelovina; Conaill Perry; Aaron von Conta; Axel Schild; Hans Jakob Wörner | |
| 2020-08-21 | |
| 发表期刊 | Science
 |
| 出版年 | 2020 |
| 英文摘要 | Many physical properties of liquid water remain unresolved due to the very fast dynamics involved in the liquid phase. Using attosecond time-resolved photoelectron spectroscopy, Jordan et al. found that photoemission of electrons from water in the liquid phase shows a time delay of about 50 to 70 attoseconds compared with photoemission from the gas phase. This difference was attributed to solvation effects and was validated by analysis of various contributions to the measured delays and by using theoretical simulations in water clusters of different sizes. Science , this issue p. [974][1] Electronic dynamics in liquids are of fundamental importance, but time-resolved experiments have so far remained limited to the femtosecond time scale. We report the extension of attosecond spectroscopy to the liquid phase. We measured time delays of 50 to 70 attoseconds between the photoemission from liquid water and that from gaseous water at photon energies of 21.7 to 31.0 electron volts. These photoemission delays can be decomposed into a photoionization delay sensitive to the local environment and a delay originating from electron transport. In our experiments, the latter contribution is shown to be negligible. By referencing liquid water to gaseous water, we isolated the effect of solvation on the attosecond photoionization dynamics of water molecules. Our methods define an approach to separating bound and unbound electron dynamics from the structural response of the solvent. [1]: /lookup/doi/10.1126/science.abb0979 |
| 领域 | 气候变化 ; 资源环境 |
| URL | 查看原文 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/291218 |
| 专题 | 气候变化 资源环境科学 |
| 推荐引用方式 GB/T 7714 | Inga Jordan,Martin Huppert,Dominik Rattenbacher,et al. Attosecond spectroscopy of liquid water[J]. Science,2020. |
| APA | Inga Jordan.,Martin Huppert.,Dominik Rattenbacher.,Michael Peper.,Denis Jelovina.,...&Hans Jakob Wörner.(2020).Attosecond spectroscopy of liquid water.Science. |
| MLA | Inga Jordan,et al."Attosecond spectroscopy of liquid water".Science (2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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