Ionic Phases of Ammonia-Rich Hydrate at High Densities
文献类型：期刊论文
| 作者 | Xu, Wan1,2; Robinson, Victor Naden3,4,5; Zhang, Xiao1,2; Zhang, Hui-Chao1,2; Donnelly, Mary-Ellen6; Dalladay-Simpson, Philip6; Hermann, Andreas3,4; Liu, Xiao-Di1 ; Gregoryanz, Eugene1,3,4,6
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| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2021-01-06 |
| 卷号 | 126 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.126.015702 |
| 通讯作者 | Gregoryanz, Eugene(e.gregoryanz@ed.ac.uk) |
| 英文摘要 | Mixtures of ammonia and water are major components of the "hot ice" mantle regions of icy planets. The ammonia-rich ammonia hemihydrate (AHH) plays a pivotal role as it precipitates from water-rich mixtures under pressure. It has been predicted to form ionic high-pressure structures, with fully disintegrated water molecules. Utilizing Raman spectroscopy measurements up to 123 GPa and first-principles calculations, we report the spontaneous ionization of AHH under compression. Spectroscopic measurements reveal that molecular AHH begins to transform into an ionic state at 26 GPa and then above similar to 69 GPa transforms into the fully ionic P (3) over bar m1 phase, AHH-III, characterized as ammonium oxide (NH4+)(2)O2-. |
| WOS关键词 | X-RAY-DIFFRACTION ; WATER ; RUBY |
| 资助项目 | National Natural Science Foundation of China[11874361] ; National Natural Science Foundation of China[51672279] ; National Natural Science Foundation of China[11774354] ; National Natural Science Foundation of China[51727806] ; CAS Innovation Grant[CXJJ-19-B08] ; Science Challenge Project[TZ2016001] ; CASHIPS Director's Fund[YZJJ201705] ; UK's National Supercomputer Service through the UK Car-Parrinello consortium[EP/P022561/1] ; UK's National Supercomputer Service through the UK Car-Parrinello consortium[d56] ; UK Materials and Molecular Modelling Hub[EP/P020194] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000605186100012 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; CAS Innovation Grant ; Science Challenge Project ; CASHIPS Director's Fund ; UK's National Supercomputer Service through the UK Car-Parrinello consortium ; UK Materials and Molecular Modelling Hub |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/119754]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Gregoryanz, Eugene |
| 作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3FD, Midlothian, Scotland 4.Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3FD, Midlothian, Scotland 5.Abdus Salaam Int Ctr Theoret Phys, I-34151 Trieste, Italy 6.Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Wan,Robinson, Victor Naden,Zhang, Xiao,et al. Ionic Phases of Ammonia-Rich Hydrate at High Densities[J]. PHYSICAL REVIEW LETTERS,2021,126. |
| APA | Xu, Wan.,Robinson, Victor Naden.,Zhang, Xiao.,Zhang, Hui-Chao.,Donnelly, Mary-Ellen.,...&Gregoryanz, Eugene.(2021).Ionic Phases of Ammonia-Rich Hydrate at High Densities.PHYSICAL REVIEW LETTERS,126. |
| MLA | Xu, Wan,et al."Ionic Phases of Ammonia-Rich Hydrate at High Densities".PHYSICAL REVIEW LETTERS 126(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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