High pressure insulator-metal transition in molecular fluid oxygen |
| |
Authors: | Bastea M Mitchell A C Nellis W J |
| |
Institution: | Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550, USA. bastea1@llnl.gov |
| |
Abstract: | We report the first experimental evidence for a metallic phase in fluid molecular oxygen. Our electrical conductivity measurements of fluid oxygen under dynamic quasi-isentropic compression show that a nonmetal-metal transition occurs at 3.4 fold compression, 4500 K, and 1.2 Mbar. We discuss the main features of the electrical conductivity dependence on density and temperature and give an interpretation of the nature of the electrical transport mechanisms in fluid oxygen at these extreme conditions. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|