Hydrogenic image-potential states: A critical examination
- 15 April 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 33 (8), 5241-5244
- https://doi.org/10.1103/physrevb.33.5241
Abstract
Accurate binding energies of image-potential states are determined with two-photon photoemission. The observed values of [0.83 eV for Cu(111), 0.77 eV for Ag(111), and 0.80 eV for Ni(111)] lie close to the hydrogenic n=1 value of 1 Ry/16=0.85 eV and do not depend significantly on the effective mass. This result rules out a recent assignment of the observed image state to an n=2 state that is strongly perturbed by surface corrugation. The high accuracy of ±0.03 eV is used to test various models.
Keywords
This publication has 26 references indexed in Scilit:
- Spectroscopy of image-potential states with inverse photoemissionPhysical Review B, 1986
- Tunneling Spectroscopy and Inverse Photoemission: Image and Field StatesPhysical Review Letters, 1985
- Electron Interferometry at Crystal SurfacesPhysical Review Letters, 1985
- Two-photon photoemission via image-potential statesPhysical Review Letters, 1985
- Crystal-induced and image-potential-induced empty surface states on Cu(111) and Cu(001)Physical Review B, 1985
- Image States: Binding Energies, Effective Masses, and Surface CorrugationPhysical Review Letters, 1985
- Image-potential and intrinsic surface states on Ag(100)Physical Review B, 1984
- Identification of Image-Potential Surface States on MetalsPhysical Review Letters, 1984
- Image-Potential States Observed by Inverse PhotoemissionPhysical Review Letters, 1984
- Image-potential states and energy-loss satellites in inverse photoemission spectraPhysical Review B, 1983