Imaging delocalized electron clouds: photoionization of C(60) in Fourier reciprocal space.
The dynamics of the photoionization of the two outermost orbitals of C(60) has been studied in the oscillatory regime from threshold to the carbon K edge. We show that geometrical properties of the fullerene electronic hull, such as its diameter and thickness, are contained in the partial photoionization cross sections by examining ratios of partial cross sections as a function of the photon wave number in the Fourier conjugated space. Evaluated in this unconventional manner photoemission data reveal directly the desired spatial information.
Rüdel
Andy
A
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany.
Hentges
Rainer
R
Becker
Uwe
U
Chakraborty
Himadri S
HS
Madjet
Mohamed E
ME
Rost
Jan M
JM