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Occupied and unoccupied surface states on Na/Cu(110) have been investigated by photoemission and inverse photoemission. By measuring surface state positions at the same adsorbate coverage on the reconstructed and the unreconstructed surface, it is demonstrated that the surface states contribute to the total energy balance of the Na-induced missing row reconstruction. During the onset of the reconstruction an up-shift of the surface states depopulates an initially occupied Cu-Cu bonding surface state and consequently destabilises the topmost Cu atoms. The surface state wavefunctions are analysed qualitatively in a tight-bonding LCAO picture.

Additional information

Authors: SANDL P, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);BERTEL E, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Article: Surface Science Letters, Vol. 302 (1994) pp. L325-L330
Record Number: 199410361 / Last updated on: 1994-11-28
Original language: en
Available languages: en
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