ISSN:
1432-2153
Keywords:
Key words:Metallic state of hydrogen, Shock compression
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
,
Technology
Notes:
Abstract. Shock compression was used to produce the first observation of a metallic state of condensed hydrogen. The conditions of metallization are a pressure of 140 GPa (1.4 Mbar), 0.6 g/cm $^3$ (ninefold compression of initial liquid-H $_2$ density), and 3000 K. The relatively modest temperature generated by a reverberating shock wave produced the metallic state in a warm fluid at a lower pressure than expected previously for the crystallographically ordered solid at low temperatures. The relatively large sample diameter of 25 mm permitted measurement of electrical conductivity. The experimental technique and data analysis are described.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s001930050189
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