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Giant Magnetoresistence in FeNi-Ag granular alloys

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Some FeNi‐Ag granular films of composition Fe11.43Ni6.35Ag82.22 (sample A) and Fe7.62Ni16.4Ag75.98 (B) were prepared by using rf magnetron sputtering, and once deposited were rapidly annealed at 600, 650, and 750 °C. All samples displayed giant magnetoresistance. The zero‐field‐cooled and field‐cooled processes evidence the segregation of ferromagnetic particles with a broad size distribution. The temperature and magnetic field dependence of the resistance is analyzed. The magnetoresistance follows a Hn law at high fields and it decays from its maximum value with a Tm behavior, with m approaching 1 at high fields.

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Reproducció del document publicat a:  http://dx.doi.org/10.1063/1.358232

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Articles publicats en revistes (Física de la Matèria Condensada)

# metadata.dc.title[].value
Giant Magnetoresistence in FeNi-Ag granular alloys