The Resistivity and Hall Effect of the Amorphous CoxNi70-xFe5Si15B10 Ribbons
K. Perzyńskaa, M. Biernackaa, L. Dobrzyńskia,b, A. Malinowskia, S. Tarasenkoa and P. Zaleskia
a Institute of Physics, University at Białystok, Lipowa 41, 15-424 Białystok, Poland
b Sołtan Institute for Nuclear Studies, 05-400 Otwock-Świerk, Poland
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The influence of structural disorder and magnetism on the resistivity of the amorphous CoxNi70-xFe5Si15B10 ribbons was investigated. The resistivity vs. alloy composition shows parabolic-like behaviour. In the thermal behaviour, resistivities of the samples show apparent magnetic contribution. They also exhibit minima at temperatures which can be correlated with the Curie temperatures. Above T ≥ 0.5TC resistivity increases linearly with increasing temperature. This effect is seemingly due to electron-phonon scattering. Obviously, the chemical and positional disorder is responsible for the major part of resistivity.
DOI: 10.12693/APhysPolA.97.745
PACS numbers: 72.15.Cz