Theory of the spin-flip excitations in the {nu}=1 quantum Hall liquid
Journal Article
·
· Physical Review, B: Condensed Matter
OSTI ID:122344
- Department of Physics, University of California at Berkeley, Berkeley, California 94720 (United States)
We calculated the spin-gap enhancement in the {nu}=1 quantum Hall liquid using a variational quantum Monte Carlo approach. The approach goes beyond the usual lowest-Landau-level approximation. A significant ({similar_to}50% at {ital r}{sub {ital s}}=2) reduction in the single spin-flip gap due to Landau-level mixing is found for typical experimental situations. Final-state effects and the finite thickness of the electron gas are conveniently included in our formalism, and satisfactorily explain recent photoluminescence experiments on {delta}-doped samples.
- Research Organization:
- Lawrence Berkeley National Laboratory
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 122344
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 16 Vol. 52; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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