Abstract
Excitons in one-dimensional narrow-gap semiconductors of anticrossing quantum Hall edge states are investigated using a bosonization method. The excitonic states are studied by mapping the problem into a nonintegrable sine Gordon type model. We also find that many-body interactions lead to a strong enhancement of the band gap. We have estimated when an exciton instability may occur.
Original language | English |
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Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 63 |
Issue number | 19 |
DOIs | |
Publication status | Published - 2001 May 1 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics