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Electronic relaxation in lead clusters : an indicator of non-metallic behavior

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2014

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Heinzelmann, Julian
Kruppa, Patrick
Proch, Sebastian
Dok Kim, Young
Ganteför, Gerd

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https://doi.org/10.1016/j.cplett.2014.04.034
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Chemical Physics Letters. 2014, 603, pp. 1-6. ISSN 0009-2614. eISSN 1873-4448. Available under: doi: 10.1016/j.cplett.2014.04.034

Zusammenfassung

Time-resolved photoemission spectroscopy was used to shed light on the relaxation dynamics of optically excited states of mass-selected Pbn cluster anions. For clusters with 9–21 atoms, relaxation times were estimated to be several picoseconds as expected for non-metallic species. For Pb12− and Pb13−, it was possible to observe photo-excited electrons hopping down the ladder of excited states back to the ground state. For Pb28−, a long relaxation time of 15 ps was found, i.e., although the density of states increased considerably with increasing cluster size, electronic relaxation was still very slow at this cluster size due to its non-metallic nature.

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ISO 690HEINZELMANN, Julian, Patrick KRUPPA, Sebastian PROCH, Young DOK KIM, Gerd GANTEFÖR, 2014. Electronic relaxation in lead clusters : an indicator of non-metallic behavior. In: Chemical Physics Letters. 2014, 603, pp. 1-6. ISSN 0009-2614. eISSN 1873-4448. Available under: doi: 10.1016/j.cplett.2014.04.034
BibTex
@article{Heinzelmann2014Elect-30019,
  year={2014},
  doi={10.1016/j.cplett.2014.04.034},
  title={Electronic relaxation in lead clusters : an indicator of non-metallic behavior},
  volume={603},
  issn={0009-2614},
  journal={Chemical Physics Letters},
  pages={1--6},
  author={Heinzelmann, Julian and Kruppa, Patrick and Proch, Sebastian and Dok Kim, Young and Ganteför, Gerd}
}
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