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
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