Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1815120 | Physica B: Condensed Matter | 2007 | 6 Pages |
Abstract
Sodium impurities are diffused electrically to the oxide-semiconductor interface of a silicon MOSFET to create an impurity band. At low temperature and at low electron density, the band is split into an upper and a lower sections under the influence of Coulomb interactions. We used magnetoconductivity measurements to provide evidence for the existence of Hubbard bands and determine the nature of the states in each band.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
T. Ferrus, R. George, C.H.W. Barnes, N. Lumpkin, D.J. Paul, M. Pepper,