We show that thermal effects play a relevant role in the determination of the electron-phonon couplings based on the intensity of the phonon-shakeup peaks in photoemission spectra. In particular, we re-consider the determination of the electron-phonon couplings of fullerene based on a fit of the photoemission spectrum of C60- in gas phase [Gunnarsson PRB 1995]. We show that taking thermal effects into account reduces the obtained couplings by approximately 10%.
Thermal effects in photoemission and electron-phonon couplings of fullerene / A. Bordoni, N. Manini - In: Fullerenes and nanotubes : materials for the new chemical frontier. Fullerenes / [a cura di] P. V. Kamat, D. M. Guldi, F. D'Souza, S. Fukuzumi. - Pennington (N.J.) : Electrochemical Society, 2005. - ISBN 1566774519. - pp. 118-125 (( Intervento presentato al 205. convegno Meeting of the Electrochemical Society tenutosi a San Antonio (Texas) nel 2004.
Thermal effects in photoemission and electron-phonon couplings of fullerene
A. BordoniPrimo
;N. ManiniUltimo
2005
Abstract
We show that thermal effects play a relevant role in the determination of the electron-phonon couplings based on the intensity of the phonon-shakeup peaks in photoemission spectra. In particular, we re-consider the determination of the electron-phonon couplings of fullerene based on a fit of the photoemission spectrum of C60- in gas phase [Gunnarsson PRB 1995]. We show that taking thermal effects into account reduces the obtained couplings by approximately 10%.
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