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Title: Giant Magnetoresistence in FeNi-Ag granular alloys
Author: Badia, Ferran
Labarta, Amílcar
Batlle Gelabert, Xavier
Watson, M. L.
Keywords: Metalls de transició
Pel·lícules fines
Microscòpia electrònica
Transition metals
Thin films
Electron microscopy
Issue Date: 1994
Publisher: American Institute of Physics
Abstract: 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.
Note: Reproducció del document publicat a:
It is part of: Journal of Applied Physics, 1994, vol. 76, núm. 10, p. 6481-6483
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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