Mohamed E Madjet et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 105101 doi:10.1088/0953-4075/41/10/105101
Mohamed E Madjet1, Himadri S Chakraborty2, Jan M Rost3 and Steven T Manson4
Show affiliationsTime-dependent density functional theory is used to calculate the total and subshell photoionization cross sections of C60. The core of 60 C4+ ions is smeared into a classical jellium shell before treating the correlated motion of the 240 valence electrons quantum mechanically. The calculation reveals two collective plasmon resonances in the total cross section in agreement with the experiment. It is found that a phase-coherent superposition of amplitudes leading to enhancements in the ionization from various C60 subshells in two distinct energy regions essentially builds the plasmons. While the result shows good qualitative agreement with the experiments, the limitation of the model to describe the data in quantitative detail is discussed.
33.80.Eh Autoionization, photoionization, and photodetachment
Issue 10 (28 May 2008)
Received 2 March 2008, in final form 3 March 2008
Published 6 May 2008
Mohamed E Madjet et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 105101
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