Edge electrostatics of a mesa-etched sample and edge-state-to-bulk scattering rate in the fractional quantum Hall regime

1994 ◽  
Vol 49 (3) ◽  
pp. 1862-1866 ◽  
Author(s):  
B. Y. Gelfand ◽  
B. I. Halperin
Keyword(s):  
Quantum Hall ◽  
Edge State ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Scattering Rate ◽  
Quantum Hall Regime ◽  
Hall Regime ◽  
Bulk Scattering

NONLOCAL RESISTANCE AND EDGE CURRENTS IN THE FRACTIONAL QUANTUM HALL REGIME

1991 ◽  
Vol 05 (24n25) ◽  
pp. 1617-1624 ◽  
Author(s):  
J.K. WANG ◽  
V.J. GOLDMAN
Keyword(s):  
Electrical Transport ◽  
Quantum Hall ◽  
Edge State ◽  
Edge States ◽  
State Structure ◽  
Electron Hole ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Quantum Hall Regime ◽  
Hall Regime

We have studied nonlocal electrical transport over macroscopic distances in the regime of the fractional quantum Hall effect (FQHE). Experiments clearly demonstrate dissipationless edge state conduction associated with the FQHE. Surprisingly, our data imply that there is no edge state conduction near ν=1/2 and on the low ν side of the ν=1 QHE state, while there is edge state conduction near ν=3/2 and on the high ν side of the ν=1 QHE state. We also observe that the electron-hole symmetry is broken for the edge states in a confined geometry. We develop a picture of edge state structure consistent with these observations.

scholarly journals Nonlinear optics in the fractional quantum Hall regime

Nature ◽  
2019 ◽  
Vol 572 (7767) ◽  
pp. 91-94 ◽  
Author(s):  
Patrick Knüppel ◽  
Sylvain Ravets ◽  
Martin Kroner ◽  
Stefan Fält ◽  
Werner Wegscheider ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
Quantum Hall ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Quantum Hall Regime ◽  
Hall Regime
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