Electrical Conductivity of ε—Iron under Shock Compression up to 208 GPa

作     者：毕延 经福谦 等 

作者机构：LaboratoryforShockWaveandDetomationPhysicsResearchInstituteofFluidPhysicsChinaAcademyofEngineeringPhysicsP.O.Box919-111Mianyang621900 InstituteofPhysicsSouthwestJiantongUnive 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2002年第19卷第2期

页      面：243-245页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0704[理学-天文学] 070301[理学-无机化学] 

基　　金：国家自然科学基金 中国工程物理研究院科学基金 

主　　题：Iron 

摘      要：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 1.45×104Ω-1cm-1 at 101GPa and 2010K to 7.65×103Ω-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 field of condensed matter physics and deep interior earth science.