Momentum-Resolved Tunneling into Fractional Quantum Hall Edges

Abstract

Tunneling from a two-dimensional contact into quantum-Hall edges is considered theoretically for a case where the barrier is extended, uniform, and parallel to the edge. In contrast to previously realized tunneling geometries, details of the microscopic edge structure are exhibited directly in the voltage and magnetic-field dependence of the differential tunneling conductance. In particular, it is possible to measure the dispersion of the edge-magnetoplasmon mode, and the existence of additional, sometimes counterpropagating, edge-excitation branches could be detected.

4 pages, 3 figures, RevTex4

References in corpus (1)

• Fermi liquid to Luttinger liquid transition at the edge of a two-dimensional electron gas

Cited by in corpus (10)

• The structure of a single sharp quantum Hall edge probed by momentum-resolved tunneling
• Evolution of the quantum Hall bulk spectrum into chiral edge states
• Strongly Correlated Fractional Quantum Hall Line Junctions
• Electron Spectral Functions of Reconstructed Quantum Hall Edges
• Tunneling in Fractional Quantum Hall line junctions
• Effects of Quantum Hall Edge Reconstruction on Momenum-Resolved Tunneling
• Probing the $\nu =2/3$ fractional quantum Hall edge by momentum-resolved tunneling
• Infrared catastrophe and tunneling into strongly correlated electron systems: Perturbative x-ray edge limit
• Probing the Electrostatics of Integer Quantum Hall Edges with Momentum-Resolved Tunnel Spectroscopy
• Infrared catastrophe and tunneling into strongly correlated electron systems: Exact solution of the x-ray edge limit for the 1D electron gas and 2D Hall fluid