Hall resistivity of Fe and Fe-Ni based amorphous alloys

• We report on Hall and ohmic studies of Fe and Fe-Ni based magnetic Metglas alloys in the temperature range 100-700 K and in magnetic fields up to 2.5 Tesla. While the saturation magnetization and the Curie temperature in these systems vary significantly, it is found that the extraordinary Hall coefficient, R1, at 300 K is almost a constant. While the temperature coefficient of the ohmic resistivity ρ is generally positive, dR1/dT is found to be of either sign. A cusp is observed in R1 and in dρ/dT for some of the alloys.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

Amorphous metals

amorphous alloys

Fe

Fe-Ni alloys

Hall resistivity

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