Observation of Sixfold Valley Degeneracy in Electron Inversion Layers on Si(111)
- 26 February 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 42 (9) , 595-597
- https://doi.org/10.1103/physrevlett.42.595
Abstract
We have observed the expected sixfold valley degeneracy in the inversion layer on Si(111). This observation suggests that the twofold valley degeneracy, observed in previous experiments, cannot be an intrinsic effect due to the intervalley charge-density-wave state proposed by Kelly and Falicov.Keywords
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