ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We have prepared granular films of Fe (36 at. %)–Mg (64 at. %) and measured the magnetization, resistance, and thermopower as a function of the applied magnetic field at temperatures between 300 and 6 K. The as-prepared sample has a magnetoresistance ratio (ΔR/Rmax) of −6.3% in a field of 5.5 T at 6 K. The samples were annealed at temperatures between 150 °C and 228 °C for one hour. The MR does not vary as the square of the magnetization, as predicted by theory. We attribute this to a particle size distribution effect.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.356780
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