Transport anomalies in the lowest Landau level of two-dimensional electrons at half-filling

H. W. Jiang, H. L. Stormer, D. C. Isui, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

122 Scopus citations

Abstract

We observe deep minima in the diagonal resistivity xx of a two-dimensional electron system in GaAs at Landau-level filling factor =(1/2 and (3/2. The anomalies saturate at nonzero values of xx as T0 and persist up to temperatures of 10 K. In spite of the strength of the xx features, no indication of plateau development is visible in the Hall resistance xy. These structures at half-filling appear to have their origin in a novel many-particle state distinctly different from the fractional quantum Hall effect.

Original languageEnglish (US)
Pages (from-to)12013-12016
Number of pages4
JournalPhysical Review B
Volume40
Issue number17
DOIs
StatePublished - 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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