Surface states of La(001) as revealed by angular-resolved ultraviolet photoelectron spectroscopy
- 15 October 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 16 (8), 3489-3492
- https://doi.org/10.1103/physrevb.16.3489
Abstract
Surface states of La(001) have been revealed by angular-resolved ultraviolet photoelectron spectroscopy. An approximate electron angular distribution and energy-band structure of the surface states have been determined. A possible model of the La(001) surface which is consistent with the experimental results is given. It is pointed out that the origin of the low work function of La is probably electric dipole moments produced by surface lanthanum ions.
Keywords
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