ABSTRACT

The magnetic and electronic properties of perovskites-type materials are complementary to each other, as they are often characteristics of the transition metals in their B-sites. The magnetic behavior of perovskites is originated from the localization of d-electrons in the transition metals and the corresponding localized spins. In general, perovskites with a magnetic transition metal in their B-site undergo paramagnetic to ferromagnetic, or antiferromagnetic, or ferrimagnetic transitions at Curie temperature (T c ), which is often accompanied by an insulator to metal transition. The above magnetic transition of perovskite materials is majorly originated from charge ordering and orbital ordering. The magnetic characteristics, in general, are also observed in perovskite oxides. For instance, colossal magnetoresistance, electronic phase separation, multiferroics, spin-glass behavior, and spin canting are few characteristics of oxides that are observed in perovskite-structured materials. However, in perovskite-structured materials, these characteristics are highly sensitive to temperature and dopants. Many perovskites transform into paramagnetic metallic phases at high temperatures; however, they do not show any dependence of temperature on magnetic susceptibility.