
Transmission and reflection probabilities between the ν=1 and the ν= 2 3 quantum hall effects
We report a transport experiment in the quantum Hall regime on the transmission of electron waves from a region exhibiting the ν=1 integral quantum Hall effect, through a barrier region exhibiting the ν= 2 3 fractional quantum Hall effect. Our work represents the first transport study across an interface between an integral and a fractional quantum Hall effect. We analyze our data in terms of the Büttiker-Landauer formalism and conduction via Landau edge states. We find a transmission probability of 2 3 (0.999 ± 0.002) and a reflection probability of 1 3 (0.995 ± 0.003). These results can be interpreted in two ways: (1) they yield a quasi-particle charge of ( -e 3) ± 0.5% in the 2 3 effect, and (2) the single-particle electronic density of states is reduced to 2 3 the value for a non-interacting electron system. © 1990.
Duke Scholars
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Chemical Physics
- 5108 Quantum physics
- 5104 Condensed matter physics
- 3406 Physical chemistry
- 0306 Physical Chemistry (incl. Structural)
- 0206 Quantum Physics
- 0204 Condensed Matter Physics
Citation

Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Chemical Physics
- 5108 Quantum physics
- 5104 Condensed matter physics
- 3406 Physical chemistry
- 0306 Physical Chemistry (incl. Structural)
- 0206 Quantum Physics
- 0204 Condensed Matter Physics