Abstract
We present an angle-resolved photoemission spectroscopy study of single-layer where interaction with a supporting highly ordered pyrolytic graphite substrate was controlled by temperature change, consistent with related modifications in the layer-substrate distance. The impact of interface potential landscape changes on the electronic properties and charge dynamics on the layer was evaluated by valence-band dispersion and photoemission line-shape analysis. Our results indicate that the hole states at the -valley point are essentially unaffected by interface potential, reflecting the strong-in plane localization of the electronic wave function.
5 More- Received 21 November 2018
DOI:https://doi.org/10.1103/PhysRevB.99.045134
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