Studies of remnant magnetoresistance in granular AuCo films

N. Peleg, G. Gorodetsky

Research output: Contribution to journalArticlepeer-review


The observation of remanence effects in the magnetoresistance of a granular Au0.82Co0.18 film is reported. The results obtained, at low temperatures and low magnetic fields, are analyzed on the basis of a simple model for remnant giant magnetoresistance. The comparison with similarly measured magnetization remanence, shows that mainly the small ferromagnetic Co particles, of volume V < 4.5 nm3, account for the giant magnetoresistance (GMR). The novel approach applied here for analyzing the dominant particles size in GMR, could be used for other granular magnetic materials as well.

Original languageEnglish
Pages (from-to)354-358
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Issue number3
StatePublished - 1 Jan 1999


  • Fine particles
  • Giant magnetoresistance
  • Superparamagnetism
  • Thin films

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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