Charge-density wave conduction with extremely low differential resistance in K0.3MoO3: Current oscillations

G. Mihály, P. Beauchêne, J. Marcus

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We have studied the real time current oscillations in the low temperature zero differential resistance state of the blue bronze (ρ{variant}diff < 10-4 Ωcm), where the current increases more than seven orders of magnitude without observable change in the voltage. The linear relation between the oscillation frequency and the current as well as the pulse duration memory effect observed demonstrate that the electronic transport is due to the charge-density waves (CDW). The drift velocity of the condensate reaches values as large as a few hundred cm/sec, leading to a metallic conductivity in an "insulating" medium at T=4.2 K. The dramatic drop of the CDW damping reflects the qualitative change in the conduction mechanism as normal carriers freeze out.

Original languageEnglish
Pages (from-to)149-152
Number of pages4
JournalSolid State Communications
Volume66
Issue number2
DOIs
Publication statusPublished - Apr 1988

ASJC Scopus subject areas

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

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