Resistivity Measurements of Fermi Liquid Compounds

Abstract

This thesis contains a report on resistivity measurements performed on two compounds, doped URu2Si2 (with Re, Fe and Rh) and Sr2RuO4 . These two materials are strongly correlated systems and they become superconducting at low temperature. In the rst two chapters, we review Fermi liquid theory and the Kondo model. We also review some previous studies on Fermi liquid behaviour of these compounds and the hidden order phase in URu2Si2 (which is still not fully understood). In the following chapter we explain the resistivity measurement techniques we used and summarize the procedure of how we built the immersion probe we use in our lab at McMaster University. Finally we report the resistivity measurements on the doped URu2Si2 samples and Sr2RuO4 done in our lab and their Fermi liquid behaviour.