Plasmas on Quantized Accumulation Layers on ZnO Surfaces
- 22 June 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 46 (25) , 1648-1651
- https://doi.org/10.1103/physrevlett.46.1648
Abstract
Low-energy—electron-loss spectroscopy is used to study collective surface excitations on accumulation layers on ZnO. A prominent loss peak is observed which shifts in energy with electron concentration. The results are well accounted for theoretically and provide direct evidence for the existence of two-dimensional plasmons.Keywords
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