Edge State Propagation Direction in the Fractional Quantum Hall Regime: Multi-Terminal Magnetocapacitance Experiment
Conference
·
OSTI ID:13079
- Sandia National Laboratories
The propagation direction of fractional quantum Hall effect (FQHE) edge states has been investigated experimentally via the symmetry properties of the multi-terminal capacitances of a two dimensional electron gas. Although strong asymmetries with respect to zero magnetic field appear, no asymmetries with respect to even denominator Landau level filling factor {nu} are seen. This indicates that current-carrying FQHE edge states propagate in the same direction as integer QHE edge states. In addition, anomalous capacitance features, indicative of enhanced bulk conduction, are observed at {nu} = 1/2 and 3/2.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 13079
- Report Number(s):
- SAND99-2151C
- Country of Publication:
- United States
- Language:
- English
Similar Records
Multiterminal Capacitance Tensor Elements of Composite Fermions and Anomalous Capacitance Peaks at Even Denominator Fillings
Understanding the physics of a possible non-Abelian fractional quantum hall effect state.
High-frequency conductivity in the fractional quantum Hall regime
Journal Article
·
Sun Nov 30 23:00:00 EST 1997
· Physical Review Letters
·
OSTI ID:550570
Understanding the physics of a possible non-Abelian fractional quantum hall effect state.
Technical Report
·
Fri Oct 01 00:00:00 EDT 2010
·
OSTI ID:993321
High-frequency conductivity in the fractional quantum Hall regime
Journal Article
·
Sat Feb 29 23:00:00 EST 1992
· International Journal of Modern Physics B; (United States)
·
OSTI ID:5328554