Enhancement of GMR in as-deposited CoCu granular films with RF sputtering power

We have studied the influence of RF deposition power on magnetization and giant magnetoresistance (GMR) in sputtered Co 26Cu 74 granular films, in order to increase GMR of as-deposited samples. M( H) measurements are fitted with superparamagnetic and ferromagnetic components and the cluster size inf...

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Veröffentlicht in:Journal of magnetism and magnetic materials 1999-05, Vol.196, p.493-494
Hauptverfasser: Andrés, J.P., Colino, J., Riveiro, J.M.
Format: Artikel
Sprache:eng
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Zusammenfassung:We have studied the influence of RF deposition power on magnetization and giant magnetoresistance (GMR) in sputtered Co 26Cu 74 granular films, in order to increase GMR of as-deposited samples. M( H) measurements are fitted with superparamagnetic and ferromagnetic components and the cluster size inferred. Room temperature magnetoresistance as high as 8% (minimum cluster radius ∼1.9 nm) was achieved with maximum RF power.
ISSN:0304-8853
DOI:10.1016/S0304-8853(98)00844-0