Direct observation of an abrupt insulator-to-metal transition in dense liquid deuterium

被引：247

作者：

Knudson, M. D. ^{[1
]}

Desjarlais, M. P. ^{[1
]}

Becker, A. ^{[2
]}

Lemke, R. W. ^{[1
]}

Cochrane, K. R. ^{[1
]}

Savage, M. E. ^{[1
]}

Bliss, D. E. ^{[1
]}

Mattsson, T. R. ^{[1
]}

Redmer, R. ^{[2
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

[2] Univ Rostock, Inst Phys, D-18055 Rostock, Germany

来源：

SCIENCE | 2015年 / 348卷 / 6242期

关键词：

HIGH-PRESSURE; HYDROGEN; DISSOCIATION; JUPITER;

D O I：

10.1126/science.aaa7471

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Eighty years ago, it was proposed that solid hydrogen would becomemetallic at sufficiently high density. Despite numerous investigations, this transition has not yet been experimentally observed. More recently, there has been much interest in the analog of this predicted metallic transition in the dense liquid, due to its relevance to planetary science. Here, we show direct observation of an abrupt insulator-to-metal transition in dense liquid deuterium. Experimental determination of the location of this transition provides a much-needed benchmark for theory and may constrain the region of hydrogen-helium immiscibility and the boundary-layer pressure in standard models of the internal structure of gas-giant planets.

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收藏

页码：1455 / 1460

页数：6

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