Semiclassical analysis of Harper-like models
- 1 November 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 46 (18) , 11559-11569
- https://doi.org/10.1103/physrevb.46.11559
Abstract
The band spectrum of a Bloch electron in a uniform magnetic field is numerically computed for models with third-nearest-neighbor interactions, permitting the effects of geometrical frustration. Unusual contacts between two bands are found and explained by use of semiclassical calculations. Above a given hopping-term magnitude, we observe a braiding of Dirac sublevels.Keywords
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