Modulation induced phase transition from fractional quantum hall to stripe state at v = 5/3

Akira Endo, Naokazu Shibata, Yasuhiro Iye

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3 Citations (Scopus)

Abstract

We have investigated the effect of unidirectional periodic potential modulation on the fractional quantum Hall (FQH) state at filling factors v = 5/3 and 4/3. For large enough modulation amplitude, we find that the resistivity minimum at v = 5/3 gives way to a peak that grows with decreasing temperature. Density matrix renormalization group calculation reveals that phase transition from FQH state to unidirectional striped state having a period ∼4l (with l the magnetic length) takes place at v = 1/3 (equivalent to v = 5/3 by the particle-hole symmetry) with the increase of the modulation amplitude, suggesting that the observed peak is the manifestation of the stripe phase.

Original languageEnglish
Article number103707
Journaljournal of the physical society of japan
Volume79
Issue number10
DOIs
Publication statusPublished - 2010 Oct 1

Keywords

  • Density matrix renormalization group
  • Fractional quantum Hall effect
  • Potential modulation
  • Stripe phase
  • Two-dimensional electron gas
  • Unidirectional lateral superlattice

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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