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 pbotoemission data reveal directly the desired spatial information