Separately contacted edge states in the fractional quantum Hall regime

2004 ◽  
Vol 22 (1-3) ◽  
pp. 177-180 ◽  
Author(s):  
A. Würtz ◽  
E.V. Deviatov ◽  
A. Lorke ◽  
V.T. Dolgopolov ◽  
D. Reuter ◽  
...  
1991 ◽  
Vol 05 (24n25) ◽  
pp. 1617-1624 ◽  
Author(s):  
J.K. WANG ◽  
V.J. GOLDMAN

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.


1995 ◽  
Vol 96 (6) ◽  
pp. 327-331 ◽  
Author(s):  
JEF Frost ◽  
C-T Liang ◽  
DR Mace ◽  
MY Simmons ◽  
M Pepper ◽  
...  

Nature ◽  
2019 ◽  
Vol 572 (7767) ◽  
pp. 91-94 ◽  
Author(s):  
Patrick Knüppel ◽  
Sylvain Ravets ◽  
Martin Kroner ◽  
Stefan Fält ◽  
Werner Wegscheider ◽  
...  

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