Three-dimensional model for surface states
- 15 May 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 9 (10) , 4178-4183
- https://doi.org/10.1103/physrevb.9.4178
Abstract
A detailed theoretical discussion of the surface bands in the Penn model is presented. It is found that a surface band always exists; another surface band may exist, if the gap is not too small and well below the vacuum level, but it plunges always in the valence band.Keywords
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