• Title of article

    Cobalt and nickel induced ferromagnetism and metallicity in Ca1−xSmxMnO3: influence upon colossal magnetoresistive (CMR) properties

  • Author/Authors

    Maignan، نويسنده , , A and Martin، نويسنده , , C and Raveau، نويسنده , , B، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 1999
  • Pages
    10
  • From page
    345
  • To page
    354
  • Abstract
    The doping of Mn sites with Co and Ni was studied for Ca0.85Sm0.15MnO3 and Ca0.80Sm0.20MnO3 and compared with Cr doping in the same oxides. It is shown that the three dopants induce strong ferromagnetic interactions and metallicity in both manganites, and that they destroy CMR effect in Ca0.85Sm0.15MnO3 and induce CMR effect in Ca0.80Sm0.20MnO3. The optimal doping level x for reaching the maximum resistivity ratio is larger for Cr (x = 0.08) than for Co and Ni (x = 0.06).
  • Keywords
    A. Oxides , D. Magnetic properties , B. Chemical synthesis , C. Electrical properties
  • Journal title
    Materials Research Bulletin
  • Serial Year
    1999
  • Journal title
    Materials Research Bulletin
  • Record number

    2094284