The large magnetoresistance of La1-xSrxCoO3 at low temperatures

R. Mahendiran, A. K. Raychaudhuri, A. Chainani, D. D. Sarma

Research output: Contribution to journalLetterpeer-review

88 Citations (Scopus)


We report here the resistivity ( rho ) and the magnetoresistance (MR) of the ferromagnetic perovskite oxide system La1-xSrxCoO3 (0.1<x<0.5) in a temperature range down to 4.2 K and magnetic fields up to 6 T. The MR is positive for x=0.5 and is negative for x<or=0.4. We find that while in the metallic samples (x>0.2) the magnitude of the MR is typically small (<10%), it is large in the composition range where x<or=0.2, where the system is close to the metal-to-insulator transition. We compare these observations with those made for the La1-xSrxMnO3 system.

Original languageEnglish
Article number002
Pages (from-to)L561-L565
JournalJournal of Physics: Condensed Matter
Issue number43
Publication statusPublished - 1995 Dec 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics


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