Renormalization group calculations for the critical properties of perovskite manganites uranium superconductors and hexagonal manganites

Abstract

In this dissertation we use renormalization group RG analyses to explore the critical behavior of various strongly correlated spin lattice coupled systems namely perovskite manganites uranium superconductors and hexagonal manganites These systems found increasing interest in recent years due to their various important technological applications They exhibit widely varying critical behavior near their magnetic transition points Perovskite manganites undergo paramagnetic ferromagnetic ph