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

N. Powers; M. L. Yan; L. Gao; S. H. Liou; D. J. Sellmyer

doi:10.1063/1.1453353

Magnetic intergranular interaction in nanocomposite Co _x Pt _100-x:C thin films

N. Powers, M. L. Yan, L. Gao, S. H. Liou, D. 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 language	English (US)
Pages (from-to)	8641-8643
Number of pages	3
Journal	Journal of Applied Physics
Volume	91
Issue number	10 I
DOIs	https://doi.org/10.1063/1.1453353
State	Published - May 15 2002

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General Physics and Astronomy

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title = "Magnetic intergranular interaction in nanocomposite Co x Pt 100-x:C thin films",

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.",

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AU - Powers, N.

AU - Yan, M. L.

AU - Gao, L.

AU - Liou, S. H.

AU - Sellmyer, D. J.

PY - 2002/5/15

Y1 - 2002/5/15

N2 - 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.

AB - 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.

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Magnetic intergranular interaction in nanocomposite Co _x Pt _100-x:C thin films

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