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Low Temperature Electronic Transport in Al–Cu–Ru Quasicrystalline Alloys |
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| Authors: | R. Rosenbaum S. Mi B. Grushko B. Przepiórzyński |
| Affiliation: | 1. School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978, Israel 2. Institut für Festk?rperforschung (IFF), Forschungszentrum Jülich, Jülich, 52425, Germany 3. Institute of Material Science, Silesian University, Katowice, 40007, Poland |
| Abstract: | Electrical resistivities of several quasicrystalline (QC) icosahedral Al–Cu–Ru alloys have been measured between room temperature and mK temperatures. None of the Al–Cu–Ru samples exhibited “insulating” behaviors in their resistivities. One sample had a large resistivity of ≈49,000 μΩ cm at room temperature. Its resistivity increased with decreasing temperatures by a factor of 3.2 and exhibited a maximum around 2 K. Fitting discrepancies between the experimental magnetoconductivity data and the weak localization and electron–electron interaction theories suggest that the weak localization theory poorly describes the electronic conduction behavior of this highly resistive quasicrystalline sample. |
| Keywords: | Al– Cu– Ru phases Quasicrystals Electrical conductivity Magnetoconductivity |
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