Abstract
The possibility that surfaces of YBa2Cu3O7-x may be intrinsically non-metallic is discussed in relation to recent photoemission data, which reveal an abnormally low density of states at the Fermi energy. A mechanism for electron localisation at the surface is presented, as well as alternative explanations for the photoemission data.
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Egdell, R.G., Flavell, W.R. Is the surface of YBa2Cu3O7-x intrinsically non-metallic?. Z. Physik B - Condensed Matter 74, 279–282 (1989). https://doi.org/10.1007/BF01307873
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DOI: https://doi.org/10.1007/BF01307873