Magnetic intergranular interaction in nanocomposite Co x Pt 100-x:C thin films

N. Powers, M. L. Yan, L. Gao, Sy-Hwang Liou, David J Sellmyer

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Abstract

Magnetization reversal and intergranular interactions have been studied in composite Co xPt 100-x:C thin films using several magnetic characterization techniques. The intergranular interactions, as determined by ΔM curves, were strongly dependent on the ratio of Co and Pt concentration. For films with high Co content, the intergranular exchange coupling was predominant, while dipolar interactions were exhibited in the film with the equiatomic concentration of Co and Pt. Magnetic intergranular interaction was directly observed using magnetic force microscopy. There is a strong correlation between the value of the ΔM and magnetic correlation length obtained from the magnetic domain images.

Original languageEnglish (US)
Pages (from-to)8641-8643
Number of pages3
JournalJournal of Applied Physics
Volume91
Issue number10 I
DOIs
StatePublished - May 15 2002

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nanocomposites
thin films
interactions
magnetic force microscopy
magnetic domains
magnetization
composite materials
curves

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Magnetic intergranular interaction in nanocomposite Co x Pt 100-x:C thin films. / Powers, N.; Yan, M. L.; Gao, L.; Liou, Sy-Hwang; Sellmyer, David J.

In: Journal of Applied Physics, Vol. 91, No. 10 I, 15.05.2002, p. 8641-8643.

Research output: Contribution to journalArticle

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