Recoil Effect of Photoelectrons in the Fermi-Edge of Simple Metals

Details Recoil Effect of Photoelectrons in the Fermi-Edge of Simple Metals Recoil Effect of Photoelectrons in the Fermi-Edge of Simple Metals

2008-07-23

arxiv.org/abs/0807.3598v1

Physics

Condensed Matter

Other Condensed Matter

5 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.101.137601

High energy resolution photoelectron spectroscopy of conduction electrons in the vicinity of the Fermi-edge in Al and Au at the excitation energy of 880 and 7940 eV was carried out using synchrotron radiation. For the excitation energy of 7940 eV, the observed Fermi energy of Al shows a remarkable shift to higher binding energy as compared with that of Au, with accompanying broadening. This is due to the recoil effect of the emitted photoelectrons. The observed spectra are well reproduced by a simple model of Bloch electrons based on the isotropic Debye model.

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