Abstract
The influence of the order-disorder structural transition on the magnetic and transport properties of Co-rich \ensuremath{\beta}-phase ${\mathrm{Co}}_{x}{\mathrm{Al}}_{1\ensuremath{-}x}$ ($x=0.54$ and 0.62) alloy films has been investigated. The disordered state in these alloy films was obtained by vapor-quenching deposition onto glass substrates cooled in liquid nitrogen. The transport properties of the ordered and disordered ${\mathrm{Co}}_{x}{\mathrm{Al}}_{1\ensuremath{-}x}$ alloy films have been measured between 2 and 300 K with and without a magnetic field of 0.5 T. The influence of the order-disorder structural transition on the temperature dependence of the resistance was discussed in the context of magnetic (magnetization, magnetic susceptibility, and ferromagnetic resonance) measurements, and analyzed in terms of the partial localization of the electronic states and variable-range hopping conductivity.
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