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DOI | 10.1126/science.aal1579 |
Observation of the Wigner-Huntington transition to metallic hydrogen | |
Dias, Ranga P.; Silvera, Isaac F. | |
2017-02-17 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6326页码:715-718 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Producing metallic hydrogen has been a great challenge in condensed matter physics. Metallic hydrogen may be a room-temperature superconductor and metastable when the pressure is released and could have an important impact on energy and rocketry. We have studied solid molecular hydrogen under pressure at low temperatures. At a pressure of 495 gigapascals, hydrogen becomes metallic, with reflectivity as high as 0.91. We fit the reflectance using a Drude free-electron model to determine the plasma frequency of 32.5 +/- 2.1 electron volts at a temperature of 5.5 kelvin, with a corresponding electron carrier density of 7.7 +/- 1.1 x 10(23) particles per cubic centimeter, which is consistent with theoretical estimates of the atomic density. The properties are those of an atomic metal. We have produced the Wigner-Huntington dissociative transition to atomic metallic hydrogen in the laboratory. |
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:000395117700034 |
WOS关键词 | PHASE-TRANSITION ; MOLECULAR-HYDROGEN ; SOLID HYDROGEN ; DENSE HYDROGEN ; PRESSURE ; SUPERCONDUCTOR ; DEUTERIUM ; DIAMOND ; FLUID ; GPA |
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/195452 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | Harvard Univ, Lyman Lab Phys, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Dias, Ranga P.,Silvera, Isaac F.. Observation of the Wigner-Huntington transition to metallic hydrogen[J]. SCIENCE,2017,355(6326):715-718. |
APA | Dias, Ranga P.,&Silvera, Isaac F..(2017).Observation of the Wigner-Huntington transition to metallic hydrogen.SCIENCE,355(6326),715-718. |
MLA | Dias, Ranga P.,et al."Observation of the Wigner-Huntington transition to metallic hydrogen".SCIENCE 355.6326(2017):715-718. |
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