Coulomb gaps in a strong magnetic field
Abstract
We report on a study of interaction effects in the tunneling density of states of a disordered two-dimensional electron gas in the strong magnetic field limit where only the lowest Landau level is occupied. Interactions in the presence of disorder are accounted for by performing finite-size self-consistent Hartree-Fock calculations. We find evidence for the formation of a pseudogap with a tunneling density of states which vanishes at the Fermi energy.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 1993
- DOI:
- 10.1103/PhysRevLett.70.4110
- Bibcode:
- 1993PhRvL..70.4110Y
- Keywords:
-
- 71.55.Jv;
- 73.40.Hm;
- Disordered structures;
- amorphous and glassy solids