Photoelectron Spectroscopy on Magnesium Ensembles in Helium Nanodroplets.
Photoelectron Spectroscopy on Magnesium Ensembles in Helium Nanodroplets.
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氦纳米液滴中镁系团的光电子能谱
DOI:
10.1021/acs.jpca.9b02880
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
J. Tiggesbäumker
中科院分区:
文献类型:
--
作者:
L. Kazak;S. Göde;K.-H. Meiwes-Broer;J. Tiggesbäumker
The electronic properties of magnesium embedded in helium nanodroplets are investigated as a function of the doping level by combining resonant two-photon ionization with photoelectron spectroscopy. Photon absorption near the atomic 31P1← 31S0transition triggers the dynamics, which is probed on a nanosecond timescale by the subsequent absorption of the ionizing photon. Striking similarities in the photoelectron spectra for different doping levels and the population of atomic states well beyond 31P1evidence an energy release process being relevant for a wide range of droplet sizes and doping conditions. From the statistical analysis, one can infer that instead of a single compact cluster size, a loosely bound Mg atom ensemble is responsible for the resulting spectra.
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DOI:
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发表时间:
2000
期刊:
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2000
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