Separately contacted edge states at high imbalance in the integer and fractional quantum Hall effect regime

Abstract

This review presents experimental results on the inter-edge-state transport in the quantum Hall effect, mostly obtained in the regime of high imbalance. The application of a special geometry makes it possible to perform I-V spectroscopy between individual edge channels in both the integer and the fractional regime. This makes it possible to study in detail a number of physical effects such as the creation of topological defects in the integer quantum Hall effect and neutral collective modes excitation in fractional regime. The while many of the experimental findings are well explained within established theories of the quantum Hall effects, a number of observations give new insight into the local structure at the sample edge, which can serve as a starting point for further theoretical studies.

13 pages, 13 figures

References in corpus (21)

• Sharp and Smooth Boundaries of Quantum Hall Liquids
• Novel Edge Excitations of Two-dimensional Electron Liquid in a Magnetic Field
• Dynamic nuclear polarization at the edge of a two-dimensional electron gas
• Double-layer quantum Hall antiferromagnetism at filling fraction nu=2/(odd integer)
• The Structure of Fractional Edge States: A Composite Fermion Approach
• Tunneling into the edge of a compressible Quantum Hall state
• Fermi liquid to Luttinger liquid transition at the edge of a two-dimensional electron gas
• Separately contacted edge states: A new spectroscopic tool for the investigation of the quantum Hall effect
• Canted antiferromagnetic phase in a double quantum well in a tilted quantizing magnetic field
• The structure of a single sharp quantum Hall edge probed by momentum-resolved tunneling
• Interlayer Coherence in the $\nu =1$ and $\nu =2$ Bilayer Quantum Hall States
• Collective Modes and Electronic Spectral Function in Smooth Edges of Quantum Hall Systems
• Hybridization of electron subbands in a double quantum well at quantizing magnetic field
• Observation of two relaxation mechanisms in transport between spin split edge states at high imbalance
• Conductance oscillations in strongly correlated fractional quantum Hall line junctions
• Electrical read-out of the local nuclear polarization in the quantum Hall effect
• Equilibration between edge states in the fractional quantum Hall effect regime at high imbalances
• Topological defects in the edge state structure in a bilayer electron system
• Opening an energy gap in an electron double layer system at integer filling factor in a tilted magnetic field
• Evidence for the Luttigger liquid density of states in transport across the incompressible stripe at fractional filling factors
• Manifestation of the bulk phase transition in the edge energy spectrum in a two dimensional bilayer electron system

Cited by in corpus (7)

• Ground state and edge excitations of quantum Hall liquid at filling factor 2/3
• Energy transport by neutral collective excitations at the quantum Hall edge
• Quantum Hall Mach-Zehnder interferometer at fractional filling factors
• A quantum Hall Mach-Zehnder interferometer far beyond the equilibrium
• Energy spectrum reconstruction at the edge of a two-dimensional electron system with strong spin-orbit coupling
• Spin-Selective Equilibration among Integer Quantum Hall Edge Channels
• Terahertz photoresponse of a quantum Hall edge-channel diode