Observation of Chiral Luttinger Behavior in Electron Tunneling into Fractional Quantum Hall Edges

A. M. Chang, L. N. Pfeiffer, and K. W. West
Phys. Rev. Lett. 77, 2538 – Published 16 September 1996
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Abstract

We measure the tunneling conductance ( G) and current-voltage ( IV) characteristics for electron tunneling from a bulk doped-GaAs normal metal into the abrupt edge of a fractional quantum Hall effect. We observe clear power law behavior for both the IV relationship and the conductance versus temperature. For tunneling into the ν=1/3 edge the power law persists for one decade in V ( T), and 2.7 (1.7) decades in I ( G). This strongly indicates the 1/3 edge behaves like a chiral Luttinger liquid. In contrast, the ν=1 edge is essentially linear, while the 2/3 edge is slightly nonlinear.

  • Received 25 April 1996

DOI:https://doi.org/10.1103/PhysRevLett.77.2538

©1996 American Physical Society

Authors & Affiliations

A. M. Chang, L. N. Pfeiffer, and K. W. West

  • Bell Laboratories, Lucent Technologies, 600 Mountain Avenue, Murray Hill, New Jersey 07974-0636

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Issue

Vol. 77, Iss. 12 — 16 September 1996

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