Abstract
We report measurements of electrical conductivity and Hall effect of AlCuRu and AlCuFe quasi-crystals. The conductivity data exhibit T 1 2 behaviour at temperatures below 30 K and T behaviour above 30 K. Both of them have been interpreted on the basis of weak localization (WL) and electron-electron interaction (EEI) theories. A large positive value and a strong temperature dependence of the Hall coefficient were observed in Al 63Cu 25Ru 12. The temperature dependence of the Hall coefficient implies that there exists a change in the carrier density. The results will be discussed in terms of WL and EEI theories and of the change in carrier density.
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