Metal–insulator transition in quasicrystalline AlPdRe

Transport properties of icosahedral AlPdRe alloys are studied. The magnetoresistance displays a metal–insulator transition (MIT), as a function of increasing resistance ratio View the MathML source. The conductivity, σ(T), saturates at a finite value also for insulating samples at low enough temperatures. View the MathML source for i-AlPdRe is found to decrease over 4 orders of magnitude for increasing R with a change of slope at the MIT.