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

Tadahiko Kanoh, Masanori Matoba

Research output: Contribution to journalConference article

Abstract

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.

Original languageEnglish
Pages (from-to)935-937
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume63
Issue number6-8
DOIs
Publication statusPublished - 2002 Jun 1
EventProceedings of the 8th ISSP International Symposium - Tokyo, Japan
Duration: 2001 Nov 22001 Nov 5

Keywords

  • A. Magnetic materials
  • C. Photoelectron spectroscopy
  • D. Magnetic properties
  • D. Transport properties

ASJC Scopus subject areas

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

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