Electron-phonon dynamics in metals on ultrashort timescales

被引：0
|
作者：
Wright, Oliver B. [1 ,2 ,5 ]
Ventzek, Peter L.G. [3 ]
Gusev, Vitalyi E. [4 ]
机构：
[1] Department of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
[2] PRESTO, Japan Sci. and Technol. Corporation, Kawaguchi 332, Japan
[3] Motorola, Predictive Engineering Laboratory, MD-K10, 3501 Ed Bluestein Blvd., Austin, TX 78721, United States
[4] Laboratoire d'Acoustique, Université du Maine, CNRS, Le Mans, France
[5] Faculty of Engineering, Dept. of Applied Physics, Hokkaido University, Sapporo 060-8628, Japan
来源：
Physica B: Condensed Matter | 1999年 / 263卷
关键词：
Carrier concentration - Electron scattering - Laser pulses - Mathematical models - Metals - Monte Carlo methods - Phonons - Relaxation processes - Ultrafast phenomena;
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摘要：
The ultrafast athermal relaxation of hot electrons in free electron metals after excitation with an ultrashort optical pulse is modelled using the linearized Boltzmann equation including the effect of electron-electron and electron-phonon scattering terms. In this paper we compare analytical predictions for the total electron energy and number density under spatially homogeneous conditions to numerical solutions obtained with a Monte Carlo technique. The numerical solutions confirm the accuracy of the analytical solution for times τE, the energy relaxation time of the electrons.
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页码：193 / 195
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