Abstract
Quench condensed Zr x Cu1−x films offer a wide concentration range (0.1≦x≦0.9) for measurements of the Hall coefficientR H of amorphous Zr−Cu alloys.R H changes sign as a function of composition, from negative to positive, as the Zr concentration is increased. The sign change is observed in a narrow concentration range at aboutx=0.22, without any peculiarity of the conductivity at this crossover concentration. The Hall coefficient of the unannealed Zr-rich films is nearly independent of temperature. However, both, the values ofR H and of the temperature dependence ofR H change with a heat treatment well below the crystallization temperature. This is most obvious for the films with a composition close to the cross-over concentration.
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