Competition between a fractional quantum hall liquid and bubble and wigner crystal phases in the third landau level

  • G. Gervais
  • , L. W. Engel
  • , H. L. Stormer
  • , D. C. Tsui
  • , K. W. Baldwin
  • , K. W. West
  • , L. N. Pfeiffer

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The new magnetotransport measurements performed in an ultrahigh mobility GaAs/AlGaAs specimen were discussed. It was found that the magnetotransport measurements were performed on a 300 Å wide modulation-doped GaAs/AlGaAs quantum well of density n ≃ 3.0 × 1011cm-2 and the ultrahigh mobility μ≃ 27 × 106 cm2/V s. The evidences were interpreted for a fractional quantum Hall liquid forming in the N = 2 Landau level. The results show that a magnetically driven insulator-insulator quantum phase transition occurred between the bubble and Wigner crystal phases at T = 0.

Original languageEnglish (US)
Article number266804
JournalPhysical review letters
Volume93
Issue number26 I
DOIs
StatePublished - Dec 31 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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