作者: W. J. Nellis , A. A. Louis , N. W. Ashcroft
关键词: Hydrogen 、 Condensed matter physics 、 Diatomic molecule 、 Metallic hydrogen 、 Pairing 、 Metal 、 Shock wave 、 Liquid hydrogen 、 Electrical resistivity and conductivity
摘要: The electrical resistivity of liquid hydrogen has been measured at the high dynamic pressures, densities and temperatures that can be achieved with a reverberating shock wave. resulting data are most naturally interpreted in terms continuous transition from semiconducting to metallic largely diatomic fluid, latter 140 GPa (nine–fold compression) 3000 K. While fluid these conditions resembles common metals by scale its 500 μΩ cm, it differs retaining strong pairing character, precise mechanism which state might attained is still matter debate. Some evident possibilities include: (i) physics one–body such as band–overlap transition; (ii) strong–coupling or many–body Mott–Hubbard (iii) processes structural changes paramount.