Ab initio calculation of electron temperature dependent electron heat capacity and electron-phonon coupling factor of noble metals
Li, Yongnan 1Ji, Pengfei1
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作者信息
1. Beijing Inst Technol
折叠
Abstract
Noble metal nanoparticles show fantastic catalytic property in various practical applications. It is a promising way to obtain nanoparticles from femtosecond laser ablation of noble metals. The calculation concentrates on electron heat capacity and electron-phonon coupling factor, which are two pivotal parameters describing the femtosecond laser-induced electron heating and the electron-phonon coupled energy transportation. The evolutions of these two parameters with increasing electron temperature are presented. It is found that the evolutions of the electron heat capacity and electron-phonon coupling factor are mainly affected by the electron density of states and the Fermi-Dirac distribution function.
Key words
Electron heat capacity/Electron-phonon coupling factor/Ab initio calculation/Density-functional theory/Noble metals/HYDROGEN EVOLUTION/OPTICAL-PROPERTIES/LASER-ABLATION/NANOPARTICLES/SURFACE/SPECTROMETRY/FABRICATION/PARTICLES
NSTL
Elsevier