Edge State Propagation Direction in the Fractional Quantum Hall Regime: Multi-Terminal Magnetocapacitance Experiment
Abstract
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.
- Authors:
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- US Department of Energy (US)
- OSTI Identifier:
- 13079
- Report Number(s):
- SAND99-2151C
TRN: US0110726
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Conference
- Resource Relation:
- Conference: 13th International Conference on the Electronic Properties of Two-Dimensional Systems, Ottawa, Ontario (CA), 08/01/1999--08/06/1999; Other Information: PBD: 20 Sep 1999
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CAPACITANCE; ELECTRON GAS; HALL EFFECT; MAGNETIC FIELDS; ASYMMETRY; ENERGY LEVELS; ELECTRIC CONDUCTIVITY; EDGE STATES; INTEGER AND FRACTIONAL QUANTUM HALL EFFECT
Citation Formats
JOHNSON, B L, MOON, JEONG-SUN, RENO, JOHN L, and SIMMONS, JERRY A. Edge State Propagation Direction in the Fractional Quantum Hall Regime: Multi-Terminal Magnetocapacitance Experiment. United States: N. p., 1999.
Web.
JOHNSON, B L, MOON, JEONG-SUN, RENO, JOHN L, & SIMMONS, JERRY A. Edge State Propagation Direction in the Fractional Quantum Hall Regime: Multi-Terminal Magnetocapacitance Experiment. United States.
JOHNSON, B L, MOON, JEONG-SUN, RENO, JOHN L, and SIMMONS, JERRY A. 1999.
"Edge State Propagation Direction in the Fractional Quantum Hall Regime: Multi-Terminal Magnetocapacitance Experiment". United States. https://www.osti.gov/servlets/purl/13079.
@article{osti_13079,
title = {Edge State Propagation Direction in the Fractional Quantum Hall Regime: Multi-Terminal Magnetocapacitance Experiment},
author = {JOHNSON, B L and MOON, JEONG-SUN and RENO, JOHN L and SIMMONS, JERRY A},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/13079},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 20 00:00:00 EDT 1999},
month = {Mon Sep 20 00:00:00 EDT 1999}
}
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.