Electrical resistivity anomalies in the perovskites La1-xSrxMnO3

A. Chainani, M. Mathew, D. D. Sarma, I. Das, E. V. Sampathkumaran

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The temperature dependence of the resistivity of La1-xSrxMnO3 indicates that the samples are semiconducting for x = 0.0 and 0.1, but metallic for x ≥ 0.2 at lower temperatures. The metallic compositions exhibit broad maxima in the range 150-250 K and also a magnetic hysteresis at 300 K. Below 30 K, we see an increase in the resistivity for the metallic samples, the temperature dependence of which indicates the importance of electron-electron interactions in these systems.

Original languageEnglish
Pages (from-to)995-997
Number of pages3
JournalPhysica B: Physics of Condensed Matter
Issue numberC
Publication statusPublished - 1993 May 2

All Science Journal Classification (ASJC) codes

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


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