Theoretical study on electron–phonon coupling factor and electron–ion nonequilibrium process in uranium
作者： Zi Li , Cong Wang , Jize Zhao , Wei Kang , Ping Zhang
DOI: 10.1063/1.4975647
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摘要: Rapid laser heating is an important experimental technique to achieve extreme conditions for uranium. Theoretical simulations of the electron–ion nonequilibrium energy relaxation after usually employ a two-temperature model using thermal quantities electron heat capacity and electron–phonon coupling factor as input parameters. Based on first-principles calculations density states Eliashberg function, we theoretically determine their dependence temperature external pressure uranium revealed connection between states. The electron/ion evolution was examined by employing with obtained quantities. time/temperature at peak/equilibrium point curve different pressures densities. We found that approximation ...
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