Electrical and magnetic property of Al_(62)Cu_(25.5)Fe_(12.5) icosahedral quasicrystal: Spin-orbit scattering

摘要

We report here electrical and magnetic properties of Al_(62)Cu_(25.5)Fe_(12.5) icosahedral quasicrystal. We have measured the electrical resistivity from 2K to 300K and observed negative temperature coefficient of resistivity above 15K. Below 15K we see a decrease in resistivity showing maxima around 15K. Upon application of a high magnetic field of 5 Tesla the maxima disappears and below 15 K the resistivity rises sharply. Magnetoresistance was measured at various temperatures as a function of applied field and we observe positive magnetoresistance for all temperatures. We have attributed these effects arising due to spin-orbit scattering.