O- and Na-Induced Surface States on Paramagnetic Ni
- 4 November 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 33 (19) , 1147-1151
- https://doi.org/10.1103/physrevlett.33.1147
Abstract
The linear combination of muffin-tin orbitals technique has been used to calculate the effect of overlayers of O and Na on Ni(001) electronic-energy levels. We find that both Na and O induce surface states in the gap with the density and energies depending on the overlayer separation . The peak observed experimentally at -0.4 Ry and O on Ni is due to nonbonding oxygen states as originally interpreted by Hagstrum and Becker.
Keywords
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