Resistivity and magnetoresistance of Fe80B20 and Fe78B13Si9 amorphous glasses

Abstract

Summary. --The electrical resistivity of FesoB20 and Fe7sBlsSi9 amorphous glasses as a function of temperature from 293 K down to 15 K was measured, and it was found to fit quite well with the model given by Cote and Meisel. Comparison between our resistivity measurements of FesoB20 and others was made, where some differences were found. These resistivity differences are evidence for a variety of amorphous atomic arrangements of the samples. The longitudinal magnetoresistance of Fes0B20 and FeTsB18Si9 at 293 K and 77K was measured in a low magnetic field. The observed magnetoresistance shows a typical field dependence known for ferromagnetic materials.PACS. 72.15 -Electronic conduction in metals and alloys.