Temperature Dependence of the Electrical Resistivity of a-FeZr Alloys

Abstract

The temperature dependence of electrical resistivity of a-Fe 100±x Zr x alloys (x = 8.5 and 9.5) is measured in the temperature range 5 to 300 K. Our observations indicate some correlations between the magnetic and electrical resistivity behavior near the transition region. The resistivity data have been analyzed in the light of both magnetic and nonmagnetic scattering models to quantify the contributions from these scattering processes. From the quantitative analysis it is found that the magnetic contribution is noticeable around the transition temperature and the nonmagnetic contribution is present in the complete temperature range of the present study.

Temperature dependence of the electrical resistivity and electronic structure of amorphous Fe100−xZrxfilms and multilayers

“…For example, Fe 90 Zr 10 has almost constant resistivity throughout the temperature interval 10-300 K, while Fe 85 Zr 15 varies significantly within the same temperature range. Similar behavior has been reported in the literature [17][18][19]. The changes in resistivity are in strong contrast to the spectroscopic measurements which reveal only small changes when changing the composition; see figures 5, 7 and 8.…”

“…In previous work on the resistivity in amorphous metallic glasses, it was concluded that a combination of magnetic and non-magnetic scattering is necessary for the interpretation of the experimental data [17]. Composition variations, such as those investigated here, influence the local atomic structure of the amorphous Fe 100−x Zr x alloys.…”