TRANSPORT PROPERTIES, GIANT MOMENTS AND NEARLY MAGNETIC IMPURITIES IN SOME NICKEL ALLOYS NEAR THE MAGNETIC TRANSITION

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Abstract
Magnetic measurements as well as electrical resistivity and magnetoresistance measurements for temperatures ranging between 1.2 K and 300 K show that the transition from the para- to the ferromagnetic state, for nickel based concentrated alloys, occurs in a rather inhomogeneous way. The magnetic and transport properties show evidence for the existence of giant moments and nearly magnetic impurities whose concentrations increase with increasing nickel content