One-dimensional image state on stepped Cu(100)
- 15 May 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 49 (19), 13859-13862
- https://doi.org/10.1103/physrevb.49.13859
Abstract
A one-dimensional, step-induced image state is found at vicinal Cu(100) surfaces with inverse photoemission and two-photon photoemission. Its energy nearly coincides with the bottom of the two-dimensional image-state band of the flat surface. The one-dimensional nature of the step state manifests itself in a lack of dispersion perpendicular to the steps. Parallel to the steps it exhibits free-electron-like dispersion, making this type of state an ideal model for one-dimensional electron physics.Keywords
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