Publication
Journal of Applied Physics
Paper

Magnetic and transport properties of amorphous FeAuB films

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Abstract

Magnetic and galvanomagnetic properties are given for amorphous Fe xAu0.8-xB0.2 films and are compared to crystalline FeAu films. The amorphous alloys show a magnetic moment per Fe which is 10% to 25% less than in the crystalline alloys where Fe has the normal value of ≊%2.2μB. This decreases is attributed to boron and comparable to the decrease found in amorphous FeB. The Hall effect as given by the Hall conductivity Rs/ρ2 is about the same value [∼0.03 (Ω cm G)-1] in both the crystalline and amorphous systems for higher Fe concentrations x≳0.62. As Fe becomes more dilute the Hall conductivity drops to about 0.02 (Ω cm G)-1. The anisotropic magnetoresistance Δρ at room temperature has a maximum value of Δp≊0.57×1006 Ω cm in amorphous FeAuB, about 30% higher than in the crystalline alloy. In general, however, the galvanomagnetic properties seem to be insensitive to the structure of the alloys.

Date

01 Dec 1982

Publication

Journal of Applied Physics

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