Electrical Conductivity of ε-Iron under Shock Compression up to 208GPa
BI Yan1, TAN Hua1, JING Fu-Qian1,2
1Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900
2Institute of Physics, Southwest Jiaotong University, Chengdu 610031
Electrical Conductivity of ε-Iron under Shock Compression up to 208GPa
BI Yan1;TAN Hua1;JING Fu-Qian1,2
1Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-111, Mianyang 621900
2Institute of Physics, Southwest Jiaotong University, Chengdu 610031
Abstract： The electrical conductivity of shock-compressed iron was measured up to 208GPa by using an improved design in experiment assembly in which the iron sample was encapsulated in a single-crystal sapphire cell. High-pressure shock compressions were generated by the plate impact technique with the two-stage light-gas gun. The measured conductivity of iron varies from 1.45 x 104Ω-1cm-1 at 101GPa and 2010K to 7.65 x 103Ω-1cm-1 at 208GPa and 5220K. After examining these data together with those reported, we found that the Bloch-Grüneisen expression is still valid at high pressures and temperatures, even up to 208GPa and 5220K, at least for ε-iron, which is significant in the filed of condensed matter physics and deep interior earth science.
BI Yan;TAN Hua;JING Fu-Qian;. Electrical Conductivity of ε-Iron under Shock Compression up to 208GPa[J]. 中国物理快报, 2002, 19(2): 243-245.
BI Yan, TAN Hua, JING Fu-Qian,. Electrical Conductivity of ε-Iron under Shock Compression up to 208GPa. Chin. Phys. Lett., 2002, 19(2): 243-245.
2002, Vol. 19 
