Anomalous electrical conduction in carbon fibers at low temperatures

Y. Koike, T. Fukase

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9 Citations (Scopus)

Abstract

Electrical conductivity of carbon fibers heat-treated at 1000 or 1200°C has been measured at low temperatures. Both carbon fibers show a large decrease of the conductivity with T- 1 2 dependence with decreasing temperature below about 1 K in the absence of magnetic field, while T 1 2 dependence of the conductivity is observed in high magnetic fields (T: temperature). The former seems due to the Kondo effect in the three-dimensional weakly localized regime investigated by Ohkawa and Fukuyama, while the latter is considered as due to the electron-electron interaction effect perceptible after the suppression of the Kondo effect by the magnetic field.

Original languageEnglish
Pages (from-to)499-502
Number of pages4
JournalSolid State Communications
Volume62
Issue number7
DOIs
Publication statusPublished - 1987 May

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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