Anomalous quantum Hall effect in charge-density-wave material η-Mo4O11

M. Sasaki, N. Miyajima, H. Negishi, K. Suga, Y. Narumi, K. Kindo

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We have performed magnetotransport experiments for η-Mo4O11 from 80 mK to 1.5 K and up to 55 T by means of edge contact method and using a pulsed magnet. In the intermediate field range of 10 < B < 25 T, we have observed anomalous quantum Hall effect, where the values of the Hall resistivity ρH at flat plateaus rather decreases, suggesting the order of the filling factor ν = 2 → 3 → 4. We proposed a possible model based on a field-dependent Fermi surface. Above 25 T, furthermore, we have observed broad peaks in both ρ-B and ρH-B curves.

Original languageEnglish
Pages (from-to)520-524
Number of pages5
JournalPhysica B: Condensed Matter
Issue number1-4
Publication statusPublished - 2001 Apr
Externally publishedYes


  • Anomalous quantum Hall effect
  • Charge-density-wave material

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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