Effects of site substitution and metal ion addition on doped manganites

A. K. Pradhan, Y. Feng, B. K. Roul, D. R. Sahu, M. Muralidhar

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We report transport, magnetization and transmission electron microscopy studies of the effects of A- and B-site substitution, and the addition of metal ions such as Pt, Ag, and Sr, on doped ABO3 perovskites, where A = La, Pr etc and B = Mn. Disorder induced by such substitution changes the behaviour of the charge-ordered (CO) state significantly. A- and B-site substitution suppresses the CO phase due to size mismatch and disorder produced by inhomogeneity. On the other hand, addition of metal ions such as Pt and Ag improves several colossal-magnetoresistance properties significantly due to microstructural effects and enhanced current percolation through grain boundaries.

本文言語English
ページ(範囲)10323-10329
ページ数7
ジャーナルJournal of Physics Condensed Matter
14
43
DOI
出版ステータスPublished - 2002 11 4
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

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