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DOI | 10.1073/pnas.1921811117 |
Stability of H3O at extreme conditions and implications for the magnetic fields of Uranus and Neptune | |
Huang, Peihao1,2; Liu, Hanyu1,2; Lv, Jian1,2; Li, Quan1,2,3; Long, Chunhong4; Wang, Yanchao1,2; Chen, Changfeng5; Hemley, Russell J.6,7; Ma, Yanming1,2,8 | |
2020-03-17 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2020 |
卷号 | 117期号:11页码:5638-5643 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The anomalous nondipolar and nonaxisymmetric magnetic fields of Uranus and Neptune have long challenged conventional views of planetary dynamos. A thin-shell dynamo conjecture captures the observed phenomena but leaves unexplained the fundamental material basis and underlying mechanism. Here we report extensive quantum-mechanical calculations of polymorphism in the hydrogen-oxygen system at the pressures and temperatures of the deep interiors of these ice giant planets (to >600 GPa and 7,000 K). The results reveal the surprising stability of solid and fluid trihydrogen oxide (H3O) at these extreme conditions. Fluid H3O is metallic and calculated to be stable near the cores of Uranus and Neptune. As a convecting fluid, the material could give rise to the magnetic field consistent with the thin-shell dynamo model proposed for these planets. H3O could also be a major component in both solid and superionic forms in other (e.g., nonconvecting) layers. The results thus provide a materials basis for understanding the enigmatic magnetic-field anomalies and other aspects of the interiors of Uranus and Neptune. These findings have direct implications for the internal structure, composition, and dynamos of related exoplanets. |
英文关键词 | planetary science high-pressure physics magnetic fields water |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000520011000019 |
WOS关键词 | TOTAL-ENERGY CALCULATIONS ; WATER ; DIAMONDS ; INTERIOR ; PHASE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/249578 |
专题 | 地球科学 |
作者单位 | 1.Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Peoples R China; 2.Jilin Univ, Coll Phys, Int Ctr Computat Methods & Software, Changchun 130012, Peoples R China; 3.Jilin Univ, Dept Mat Sci, Minist Educ, Key Lab Automobile Mat, Changchun 130012, Peoples R China; 4.Chongqing Univ Posts & Telecommun, Sch Sci, Chongqing 400065, Peoples R China; 5.Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA; 6.Univ Illinois, Dept Phys, Chicago, IL 60607 USA; 7.Univ Illinois, Dept Chem, Chicago, IL 60607 USA; 8.Jilin Univ, Int Ctr Future Sci, Changchun 130012, Peoples R China |
推荐引用方式 GB/T 7714 | Huang, Peihao,Liu, Hanyu,Lv, Jian,et al. Stability of H3O at extreme conditions and implications for the magnetic fields of Uranus and Neptune[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(11):5638-5643. |
APA | Huang, Peihao.,Liu, Hanyu.,Lv, Jian.,Li, Quan.,Long, Chunhong.,...&Ma, Yanming.(2020).Stability of H3O at extreme conditions and implications for the magnetic fields of Uranus and Neptune.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(11),5638-5643. |
MLA | Huang, Peihao,et al."Stability of H3O at extreme conditions and implications for the magnetic fields of Uranus and Neptune".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.11(2020):5638-5643. |
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