Ultrafast relaxation dynamics of optically excited electrons in Ni - 3
Ultrafast relaxation dynamics of optically excited electrons in Ni - 3
复制标题
Ni - 3 中光激发电子的超快弛豫动力学
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
P. S. Bechthold
中科院分区：
文献类型：
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作者：
N. Pontius;M. Neeb;W. Eberhardt;G. Lüttgens;P. S. Bechthold
Photon-induced ultrafast energy dissipation in small isolated Ni 3 - has been studied by two-color pump-probe photoelectron spectroscopy. The time-resolved photoelectron spectra clearly trace the path from a single-electron excitation to a thermalized cluster via both inelastic electron-electron scattering and electron-vibrational coupling. The relatively short electron-electron-scattering time of 215 fs results from the narrow energy spread of the partially filled d levels in this transition-metal cluster. The relaxation dynamics is discussed in view of the cluster size and in comparison to the totally different relaxation behavior of s/p-metal clusters.
