Electronic surface state of NiO (100)

Freitag, A.; Staemmler, V.; Cappus, D.; Ventrice, C.A.; Al Shamery, K.; Kuhlenbeck, H.; Freund, Hans-Joachim

doi:10.1016/0009-2614(93)89091-U

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Electronic surface state of NiO (100)

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Freitag, A., Staemmler, V., Cappus, D., Ventrice, C., Al Shamery, K., Kuhlenbeck, H., et al. (1993). Electronic surface state of NiO (100). Chemical Physics Letters, 210(1-3), 10-14. doi:10.1016/0009-2614(93)89091-U.

Cite as: https://hdl.handle.net/21.11116/0000-000E-58A0-A

Abstract

The electronic structure of the (100) surface of NiO has been studied using EELS (electron energy loss spectroscopy) and ab initio calculations. In addition to the previously documented bulk excitations of NiO, two new states at energies of 0.57 and 1.62 eV have been found. These states are attributed to d-d transitions of the nickel surface ions. As expected for surface states, they are affected by the interaction with an adsorbate, i.e. adsorption of NO leads to a shift to higher energy. Ab initio cluster calculations show that electronic structure of the surface is considerably different from that of the bulk which is a result of the lower symmetry of the crystal field at the surface (O_h→C_4v). The nature of the observed surface states has been identified by a comparison of the experimental data with theoretical results.