Magnetic dilution and electronic nature in La0.7Pb0.3Mn1-xZnxO3

Tadahiko Kanoh, Masanori Matoba

研究成果: Conference article


We have studied the magnetic dilution and electronic nature of Zn doping on the Mn site in the colossal magnetoresistant material La0.7Pb0.3MnO3 (x ≤ 0.3). Small non-magnetic Zn2+ doping tends to separate the system into ferromagnetic clusters to weaken the long-range ferromagnetic order and to reduce the Curie temperature. The spin polarizability of the x = 0-0.3 samples is estimated to be 0.97-1.00, indicating that the x = 0-0.3 samples are the spin polarized materials in which the conductivity is dominated by single-spin charge carriers. Small doping (x ≥ 0.1) induces the metal-insulator transition and destroys the metallic state with long-range ferromagnetic order.

ジャーナルJournal of Physics and Chemistry of Solids
出版物ステータスPublished - 2002 6 1
イベントProceedings of the 8th ISSP International Symposium - Tokyo, Japan
継続期間: 2001 11 22001 11 5

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

フィンガープリント Magnetic dilution and electronic nature in La<sub>0.7</sub>Pb<sub>0.3</sub>Mn<sub>1-x</sub>Zn<sub>x</sub>O<sub>3</sub>' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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