Resistivity Measurement of Molten Olivine in a Laser-Heated Diamond Anvil Cell  

作　　者：李明 高春晓 马艳章 贺春元 郝爱民 张东梅 李延春 刘景 王多君 

机构地区：[1]National Laboratory of Superhard Materials, Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012 [2]Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409, USA [3]Beijing Synchrotron Radiation Laboratories, Institute of High Energy Physics, Chinese Academy of Sciences Beijing 100049 [4]Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002

出　　处：《Chinese Physics Letters》2007年第4期1010-1012,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 40473034, 40404007, 10574055 and 50532020, and the National Basic Research Programme of China under Grant No 2005CB724404.

摘　　要：The electrical conductivity of molten olivine is studied up to 3720K and 13.2 GPa. The results indicate that the electrical conductivity of molten olivine exhibits the perfect Arrhenius behaviour. The activation energy as well as temperature effect is much smaller than that of the solid olivine. It is expected that the high conductivity zone in the mantle is almost independent of the melting based on our experimental data.The electrical conductivity of molten olivine is studied up to 3720K and 13.2 GPa. The results indicate that the electrical conductivity of molten olivine exhibits the perfect Arrhenius behaviour. The activation energy as well as temperature effect is much smaller than that of the solid olivine. It is expected that the high conductivity zone in the mantle is almost independent of the melting based on our experimental data.

关 键 词：X-RAY-DIFFRACTION ELECTRICAL-CONDUCTIVITY HIGH-PRESSURE MEGABAR PRESSURES UPPER-MANTLE SUPERCONDUCTIVITY TEMPERATURE GPA 

分 类 号：O43[机械工程—光学工程]