中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
  4. 中科院固体物理研究所
Stability of Ar(H-2)(2) to 358 GPa

文献类型：期刊论文

作者Ji, Cheng1,2; Goncharov, Alexander F.3,4; Shukla, Vivekanand5; Jena, Naresh K.5; Popov, Dmitry2; Li, Bing1,6,7; Wang, Junyue1,3; Meng, Yue2; Prakapenka, Vitali B.8; Smith, Jesse S.2
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2017-04-04
卷号114期号:14页码:3596-3600
关键词Ultrahigh Pressure Hydrogen-rich Compound Intermolecular Interaction Metallization
DOI10.1073/pnas.1700049114
文献子类Article
英文摘要"Chemical precompression" through introducing impurity atoms into hydrogen has been proposed as a method to facilitate metallization of hydrogen under external pressure. Here we selected Ar(H-2)(2), a hydrogen-rich compound with molecular hydrogen, to explore the effect of "doping" on the intermolecular interaction of H-2 molecules and metallization at ultrahigh pressure. Ar(H-2)(2) was studied experimentally by synchrotron X-ray diffraction to 265 GPa, by Raman and optical absorption spectroscopy to 358 GPa, and theoretically using the density-functional theory. Our measurements of the optical bandgap and the vibron frequency show that Ar(H-2)(2) retains 2-eV bandgap and H-2 molecular units up to 358 GPa. This is attributed to reduced intermolecular interactions between H-2 molecules in Ar(H-2)(2) compared with that in solid H-2. A splitting of the molecular vibron mode above 216 GPa suggests an orientational ordering transition, which is not accompanied by a change in lattice symmetry. The experimental and theoretical equations of state of Ar(H-2)(2) provide direct insight into the structure and bonding of this hydrogen-rich system, suggesting a negative chemical pressure on H-2 molecules brought about by doping of Ar.
WOS关键词EQUATION-OF-STATE ; HIGH-PRESSURE ; METALLIC HYDROGEN ; SOLID HYDROGEN ; MEGABAR PRESSURES ; PHASE-TRANSITION ; SUPERCONDUCTOR
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000398159000037
资助机构US Department of Energy (DOE)-NNSA(DENA0001974) ; US Department of Energy (DOE)-NNSA(DENA0001974) ; US Department of Energy (DOE)-NNSA(DENA0001974) ; US Department of Energy (DOE)-NNSA(DENA0001974) ; DOE-BES(DE-FG02-99ER45775) ; DOE-BES(DE-FG02-99ER45775) ; DOE-BES(DE-FG02-99ER45775) ; DOE-BES(DE-FG02-99ER45775) ; National Science Foundation (NSF) ; National Science Foundation (NSF) ; National Science Foundation (NSF) ; National Science Foundation (NSF) ; NSF Award MRI(EAR/IF1531583) ; NSF Award MRI(EAR/IF1531583) ; NSF Award MRI(EAR/IF1531583) ; NSF Award MRI(EAR/IF1531583) ; NSF-Earth Sciences(EAR-1128799) ; NSF-Earth Sciences(EAR-1128799) ; NSF-Earth Sciences(EAR-1128799) ; NSF-Earth Sciences(EAR-1128799) ; Department of Energy-Geosciences(DE-FG02-94ER14466) ; Department of Energy-Geosciences(DE-FG02-94ER14466) ; Department of Energy-Geosciences(DE-FG02-94ER14466) ; Department of Energy-Geosciences(DE-FG02-94ER14466) ; Chinese Academy of Sciences(2011T2J20) ; Chinese Academy of Sciences(2011T2J20) ; Chinese Academy of Sciences(2011T2J20) ; Chinese Academy of Sciences(2011T2J20) ; Recruitment Program of Foreign Experts ; Recruitment Program of Foreign Experts ; Recruitment Program of Foreign Experts ; Recruitment Program of Foreign Experts ; US Department of Energy, Office of Science, Office of Basic Energy Sciences(DE-AC02-06CH11357) ; US Department of Energy, Office of Science, Office of Basic Energy Sciences(DE-AC02-06CH11357) ; US Department of Energy, Office of Science, Office of Basic Energy Sciences(DE-AC02-06CH11357) ; US Department of Energy, Office of Science, Office of Basic Energy Sciences(DE-AC02-06CH11357) ; Swedish National Infrastructure for Computing(SNIC-2015-10-19) ; Swedish National Infrastructure for Computing(SNIC-2015-10-19) ; Swedish National Infrastructure for Computing(SNIC-2015-10-19) ; Swedish National Infrastructure for Computing(SNIC-2015-10-19) ; European Erasmus Fellowship program ; European Erasmus Fellowship program ; European Erasmus Fellowship program ; European Erasmus Fellowship program ; Swedish Research Council ; Swedish Research Council ; Swedish Research Council ; Swedish Research Council ; US Department of Energy (DOE)-NNSA(DENA0001974) ; US Department of Energy (DOE)-NNSA(DENA0001974) ; US Department of Energy (DOE)-NNSA(DENA0001974) ; US Department of Energy (DOE)-NNSA(DENA0001974) ; DOE-BES(DE-FG02-99ER45775) ; DOE-BES(DE-FG02-99ER45775) ; DOE-BES(DE-FG02-99ER45775) ; DOE-BES(DE-FG02-99ER45775) ; National Science Foundation (NSF) ; National Science Foundation (NSF) ; National Science Foundation (NSF) ; National Science Foundation (NSF) ; NSF Award MRI(EAR/IF1531583) ; NSF Award MRI(EAR/IF1531583) ; NSF Award MRI(EAR/IF1531583) ; NSF Award MRI(EAR/IF1531583) ; NSF-Earth Sciences(EAR-1128799) ; NSF-Earth Sciences(EAR-1128799) ; NSF-Earth Sciences(EAR-1128799) ; NSF-Earth Sciences(EAR-1128799) ; Department of Energy-Geosciences(DE-FG02-94ER14466) ; Department of Energy-Geosciences(DE-FG02-94ER14466) ; Department of Energy-Geosciences(DE-FG02-94ER14466) ; Department of Energy-Geosciences(DE-FG02-94ER14466) ; Chinese Academy of Sciences(2011T2J20) ; Chinese Academy of Sciences(2011T2J20) ; Chinese Academy of Sciences(2011T2J20) ; Chinese Academy of Sciences(2011T2J20) ; Recruitment Program of Foreign Experts ; Recruitment Program of Foreign Experts ; Recruitment Program of Foreign Experts ; Recruitment Program of Foreign Experts ; US Department of Energy, Office of Science, Office of Basic Energy Sciences(DE-AC02-06CH11357) ; US Department of Energy, Office of Science, Office of Basic Energy Sciences(DE-AC02-06CH11357) ; US Department of Energy, Office of Science, Office of Basic Energy Sciences(DE-AC02-06CH11357) ; US Department of Energy, Office of Science, Office of Basic Energy Sciences(DE-AC02-06CH11357) ; Swedish National Infrastructure for Computing(SNIC-2015-10-19) ; Swedish National Infrastructure for Computing(SNIC-2015-10-19) ; Swedish National Infrastructure for Computing(SNIC-2015-10-19) ; Swedish National Infrastructure for Computing(SNIC-2015-10-19) ; European Erasmus Fellowship program ; European Erasmus Fellowship program ; European Erasmus Fellowship program ; European Erasmus Fellowship program ; Swedish Research Council ; Swedish Research Council ; Swedish Research Council ; Swedish Research Council
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/32934]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China
2.Carnegie Inst Sci, Geophys Lab, High Pressure Collaborat Access Team, Argonne, IL 60439 USA
3.Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA
4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
5.Uppsala Univ, Dept Phys & Astron, Condensed Matter Theory Mat Theory Div, S-75120 Uppsala, Sweden
6.Florida Int Univ, Dept Mech & Mat Engn, Ctr Study Matter Extreme Condit, Miami, FL 33199 USA
7.Carnegie Inst Sci, Geophys Lab, High Pressure Synerget Consortium, Argonne, IL 60439 USA
8.Univ Chicago, Ctr Adv Radiat Sources, Argonne, IL 60439 USA
推荐引用方式
GB/T 7714		 Ji, Cheng,Goncharov, Alexander F.,Shukla, Vivekanand,et al. Stability of Ar(H-2)(2) to 358 GPa[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(14):3596-3600.
APA Ji, Cheng.,Goncharov, Alexander F..,Shukla, Vivekanand.,Jena, Naresh K..,Popov, Dmitry.,...&Mao, Ho-Kwang.(2017).Stability of Ar(H-2)(2) to 358 GPa.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(14),3596-3600.
MLA Ji, Cheng,et al."Stability of Ar(H-2)(2) to 358 GPa".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.14(2017):3596-3600.

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。