首页|Thermal conductivity of iron under the Earth's inner core pressure
Thermal conductivity of iron under the Earth's inner core pressure
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The thermal conductivity of ε-iron at high pressure and high temperature is a key parameter to constrain the dynamics and thermal evolution of the Earth's core.In this work,we use first-principles calculations to study the Hugoniot sound velocity and the thermal transport properties of ε-iron.The total thermal conductivity considering lattice vibration is 200 W/mK at the Earth's inner core conditions.The suppressed anharmonic interactions can significantly enhance the lattice thermal conductivity under high pressure,and the contribution of the lattice thermal conductivity should not be ignored under the Earth's core conditions.
thermal conductivityfirst-principleshigh pressure and high temperature
胡翠娥、焦亩鑫、杨学楠、曾召益、陈军
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College of Physics and Electronic Engineering,Chongqing Normal University,Chongqing 400047,China
Laboratory of Computational Physics,Institute of Applied Physics and Computational Mathematics,Beijing 100088,China
Center for Applied Physics and Technology,Peking University,Beijing 100071,China
National Natural Science Foundation of ChinaNatural science Foundation of Chongqing City
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