Quantization of the Hall Conductivity Well Beyond the Adiabatic Limit in Pulsed Magnetic Fields
Journal Article
·
· Physical Review Letters
We measure the Hall conductivity, {sigma}{sub xy} , on a Corbino geometry sample of a high-mobility AlGaAs/GaAs heterostructure in a pulsed magnetic field. At a bath temperature about 80mK, we observe well expressed plateaux in {sigma}{sub xy} at integer filling factors. In the pulsed magnetic field, the Laughlin condition of the phase coherence of the electron wave functions is strongly violated and, hence, is not crucial for {sigma}{sub xy} quantization.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40204638
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 86; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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