Unoccupied electronic structure of Na/Ni(111)

Authors

D. Tang, University of Rhode Island
David R. Heskett, University of Rhode IslandFollow

Document Type

Article

Date of Original Version

4-15-1993

Abstract

Using the technique of inverse photoemission spectroscopy we have measured the unoccupied electronic states of Na on Ni(111) as a function of Na dose on the Ni(111) surface. An image-potential surface state pinned to the vacuum level shifts towards the Fermi level and disappears for Na coverages greater than 0.07 monolayer (ML). This image state reappears at high coverage, when the Na coverage is larger than 0.6 ML and is detected at 2.4 _eV above the Fermi level at 1 ML of Na coverage. A Na-induced state which we assign as the Na 3p level appears for Na coverages above 0.02 ML and shifts down towards the Fermi level with increasing coverage. We compare our results with studies of related systems.

Citation/Publisher Attribution

Tang, D., & Heskett, D. (1993). Unoccupied electronic structure of Na/Ni(111). Physical Review B, 47(16), 10695-10699. doi: 10.1103/PhysRevB.47.10695

Available at: http://dx.doi.org/10.1103/PhysRevB.47.10695

Publisher Statement

©1993 The American Physical Society