Nonlinear Hall effect in K0.3MoO3 due to the sliding of charge-density waves

L. Forró, J. R. Cooper, A. Jánossy, K. Kamarás

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Hall-effect data for a Peierls semiconductor, the blue bronze K0.3MoO3, are reported both below and above the threshold electric field for the sliding of charge-density waves (CDW). The motion of the CDW alters the Hall voltage significantly and the data are fitted to a theoretical model whereby the motion of the CDW induces a "backflow" of normal electrons which causes a reduction in the Hall voltage. However there are difficulties in accounting for the magnitude of the observed effect as well as the magnitude of the low-field Hall coefficient. Therefore it is tentatively suggested that a two-fluid model may provide a better estimate of the number of normal electrons than that given by the usual one-dimensional semiconductor picture.

Original languageEnglish
Pages (from-to)9047-9050
Number of pages4
JournalPhysical Review B
Volume34
Issue number12
DOIs
Publication statusPublished - 1986

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Charge density waves
Hall effect
sliding
Semiconductor materials
two fluid models
Electrons
Bronze
bronzes
Electric potential
electric potential
electrons
Electric fields
Fluids
thresholds
electric fields
causes
estimates

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Nonlinear Hall effect in K0.3MoO3 due to the sliding of charge-density waves. / Forró, L.; Cooper, J. R.; Jánossy, A.; Kamarás, K.

In: Physical Review B, Vol. 34, No. 12, 1986, p. 9047-9050.

Research output: Contribution to journalArticle

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