The electrical resistivity of amorphous alloys at low temperatures |
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Authors: | J. Willer G. Fritsch W. Rausch E. Lüscher |
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Affiliation: | 1. Physik-Department, Technische Universit?t München, James-Franck-Strasse, D-8046, Garching bei München, Germany 2. ZWE Physik, Hochschule der Bundeswehr München, Neubiberg, Germany
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Abstract: | Measurements of the temperature- and magnetic field dependence of the electrical resistance of some metallic glasses are presented. The data obtained for Cu57Zr43, Cu40Zr60 and Pd30Zr70 demonstrate that deviations from the high temperature behaviour extrapolated to low temperatures are caused by superconducting effects. The paraconductivity which is strongly enhanced in amorphous alloys is shown to agree quite well with theoretical models. The normal state resistance does not saturate down to temperatures of about 2 K. It still exhibits a negative temperature coefficient of the resistivity. |
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