Nonlinear conduction in La2-xBaxCuO4

Tadashi Adachi, Yoji Koike

Research output: Contribution to journalArticle

Abstract

We have investigated the electric-field dependence of the electrical conductivity in La2-xBaxCuO4 with x = 0.03 and 0.125 (=1/8) where the superconductivity is suppressed. For x = 0.03, nonlinear conduction has been observed at low temperatures where the low-current resistivity increases with decreasing temperature. The observed nonlinearity can be well represented by the electric-field dependence of the conductivity in the Anderson-localized state. For x = 0.125, on the other hand, the conductivity is independent of the applied field within the measured field-range. We speculate that this result at x = 1/8 is due to the formation of static stripe-order of holes and spins, as discovered in La1.6-xNd0.4SrxCuO4 with x = 1/8.

Original languageEnglish
Pages (from-to)655-656
Number of pages2
JournalPhysica B: Condensed Matter
Volume284-288
Issue numberPART I
DOIs
Publication statusPublished - 2000 Jan 1

Keywords

  • 1/8-problem
  • LaBaCuO
  • Nonlinear conduction

ASJC Scopus subject areas

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

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