Magnetic study of particle distribution in granular AuCo

N. Peleg, S. Shtrikman, G. Gorodetsky, I. Felner

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Measurements of field-cooled magnetization (FCM) and reversed-field-cooled magnetization (RFCM) in granular Au0.82Co0.18 films were carried out at various applied magnetic fields. It is shown that temperature derivatives of the difference between FCM and RFCM provide information on size distribution of the superparamagnetic Co particles. The field dependence of the blocking temperatures, obtained by the same measurements, is found to deviate from existing theories.

Original languageEnglish
Pages (from-to)349-353
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume191
Issue number3
DOIs
StatePublished - 1 Jan 1999

Keywords

  • Fine particles
  • Giant magnetoresistance
  • Remanent magnetization
  • Superparamagnetism
  • Thin films

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