Knowledge Management System of Hefei Institute of Physical Science,CAS
Superionicity, disorder, and bandgap closure in dense hydrogen chloride | |
Binns, Jack1,6; Hermann, Andreas2,3; Pena-Alvarez, Miriam2,3; Donnelly, Mary-Ellen1; Wang, Mengnan1; Kawaguchi, Saori Imada4; Gregoryanz, Eugene1,2,3,5; Howie, Ross T.1; Dalladay-Simpson, Philip1 | |
2021-09-01 | |
发表期刊 | SCIENCE ADVANCES |
ISSN | 2375-2548 |
通讯作者 | Hermann, Andreas(a.hermann@ed.ac.uk) ; Dalladay-Simpson, Philip(philip.dalladay-simpson@hpstar.ac.cn) |
摘要 | Hydrogen bond networks play a crucial role in biomolecules and molecular materials such as ices. How these networks react to pressure directs their properties at extreme conditions. We have studied one of the simplest hydrogen bond formers, hydrogen chloride, from crystallization to metallization, covering a pressure range of more than 2.5 million atmospheres. Following hydrogen bond symmetrization, we identify a previously unknown phase by the appearance of new Raman modes and changes to x-ray diffraction patterns that contradict previous predictions. On further compression, a broad Raman band supersedes the well-defined excitations of phase V, despite retaining a crystalline chlorine substructure. We propose that this mode has its origin in proton (H+) mobility and disorder. Above 100 GPa, the optical bandgap closes linearly with extrapolated metallization at 240(10) GPa. Our findings suggest that proton dynamics can drive changes in these networks even at very high densities. |
DOI | 10.1126/sciadv.abi9507 |
关键词[WOS] | X-RAY-DIFFRACTION ; BOND SYMMETRIZATION ; CRYSTAL-STRUCTURE ; PHASE-TRANSITION ; AMMONIA ; RAMAN ; WATER ; ICE ; SYSTEM |
收录类别 | SCI |
语种 | 英语 |
资助项目 | 1000 Young Talents awards ; Top 1000 Talents award ; National Natural Science Foundation of China (NSFC)[11974034] ; European Research Council (ERC)[695527] ; FLF Award[MR/T043733/1] ; EPSRC[EP/P022561/1] ; EPSRC[EP/P020194] |
项目资助者 | 1000 Young Talents awards ; Top 1000 Talents award ; National Natural Science Foundation of China (NSFC) ; European Research Council (ERC) ; FLF Award ; EPSRC |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000695711400033 |
出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/125352 |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Hermann, Andreas; Dalladay-Simpson, Philip |
作者单位 | 1.Ctr High Pressure Sci & Technol Adv Res, 1690 Cailun Rd, Shanghai 201203, Peoples R China 2.Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland 3.Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3JZ, Midlothian, Scotland 4.Japan Synchrotron Radiat Res Inst JASRI, Sayo, Hyogo 6795198, Japan 5.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei, Peoples R China 6.RMIT Univ, Sch Sci, Melbourne, Vic 3000, Australia |
推荐引用方式 GB/T 7714 | Binns, Jack,Hermann, Andreas,Pena-Alvarez, Miriam,et al. Superionicity, disorder, and bandgap closure in dense hydrogen chloride[J]. SCIENCE ADVANCES,2021,7. |
APA | Binns, Jack.,Hermann, Andreas.,Pena-Alvarez, Miriam.,Donnelly, Mary-Ellen.,Wang, Mengnan.,...&Dalladay-Simpson, Philip.(2021).Superionicity, disorder, and bandgap closure in dense hydrogen chloride.SCIENCE ADVANCES,7. |
MLA | Binns, Jack,et al."Superionicity, disorder, and bandgap closure in dense hydrogen chloride".SCIENCE ADVANCES 7(2021). |
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