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Charge-transfer dynamics in one-dimensional C60 chains


Pérez-Dieste, V; Tamai, A; Greber, T; Chiuzbaian, S G; Patthey, L (2008). Charge-transfer dynamics in one-dimensional C60 chains. Surface Science, 602(11):1928-1932.

Abstract

Charge transfer in highly-ordered C60 chains grown on a Cu(5 5 3) vicinal surface is studied by means of resonant photoemission. Tuning the light polarization, autoionization of the highest occupied molecular orbital (HOMO) was expected to detect anisotropy in this one-dimensional system. For one monolayer C60 we found no signature of autoionization. This indicates that for an electron which is excited from the C 1s level of C60 to the lowest unoccupied molecular orbital (LUMO), hybridization leads to delocalization on the femtosecond time-scale and no influence of the light polarization is observed.

Abstract

Charge transfer in highly-ordered C60 chains grown on a Cu(5 5 3) vicinal surface is studied by means of resonant photoemission. Tuning the light polarization, autoionization of the highest occupied molecular orbital (HOMO) was expected to detect anisotropy in this one-dimensional system. For one monolayer C60 we found no signature of autoionization. This indicates that for an electron which is excited from the C 1s level of C60 to the lowest unoccupied molecular orbital (LUMO), hybridization leads to delocalization on the femtosecond time-scale and no influence of the light polarization is observed.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:1 June 2008
Deposited On:10 Feb 2009 12:33
Last Modified:05 Apr 2016 12:50
Publisher:Elsevier
ISSN:0039-6028
Publisher DOI:https://doi.org/10.1016/j.susc.2008.03.042

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