Transport properties in iron-iron oxide film near percolation threshold

Shanling Ren, Biao You*, Jun Du, X. J. Bai, J. Zhang, An Hu, Bei Zhang, X. X. Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Iron-iron oxide granular films are fabricated using dc magnetron sputtering. Their structural, magnetic and transport properties are studied in the vicinity of percolation threshold. X-ray photoelectron spectroscopy and transmission electron microscopy confirm the coexistence of iron and FeOx. Magnetic measurement indicates the exchange coupling between the iron and the FeOx matrix. Metal-insulator transition is observed. The non-monotonic temperature dependencies of resistivity occur near the percolation threshold and the mechanism is investigated with the longitudinal and transverse magnetic transport measurement in terms of weak localization.

Original languageEnglish (US)
Pages (from-to)417-421
Number of pages5
JournalJournal of Alloys and Compounds
Volume465
Issue number1-2
DOIs
StatePublished - Oct 6 2008

Keywords

  • Electronic transport
  • Magnetic films and multilayers
  • Magnetic measurements

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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