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Metallic phase of the quantum Hall system at even-denominator filling fractions
Abstract
We propose an explanation for the resistivity anomalies exhibited by the two-dimensional spin-polarized electron gas at \ensuremath{\nu}=1/2 and related even-denominator filling fractions. Within the Chern-Simon-Landau-Ginzburg theory we argue that the inhomogeneity in the electron density, caused by the impurity potential, induces a spatially random distribution of statistical flux, and that electron localization can be suppressed by this random flux. As a result, a metallic phase appears in the phase diagram of the Hall system near \ensuremath{\nu}=1/2, leading to a temperature-independent resitivity minimum.
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Citations
Cites
Composite-fermion approach for the fractional quantum Hall effect
Jain, J. K. (1989) · Physical Review Letters · doi:10.1103/physrevlett.63.199 · Cited by 2,346
Cited by
Integer quantum Hall transition: An alternative approach and exact results
Ludwig, A. W. W., Fisher, M. P. A., Shankar, R., & Grinstein, G. (1994) · Physical Review B · doi:10.1103/physrevb.50.7526 · Cited by 709
The fractional quantum Hall effect
Stormer, H. L., Tsui, D. C., & Gossard, A. C. (1999) · Reviews of Modern Physics · doi:10.1103/revmodphys.71.s298 · Cited by 483
Detection of composite fermions by magnetic focusing
Goldman, V. J., Su, B., & Jain, J. K. (1994) · Physical Review Letters · doi:10.1103/physrevlett.72.2065 · Cited by 287
Metadata
- Authors
- Kalmeyer, V., & Zhang, S.-C.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 1992-10-15
- Volume
- 46
- Issue
- 15
- Pages
- 9889-9892
- ISSN
- 0163-1829 (ISSN-L)
- 1095-3795
- OpenAlex
- W2024345155
- Cited by
- 283
- References
- 1
- FWCI
- 14.72
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kalmeyer, V., & Zhang, S.-C. (1992). Metallic phase of the quantum Hall system at even-denominator filling fractions. Physical Review B. https://doi.org/10.1103/physrevb.46.9889
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