Structural & magnetic investigations of corundum & perovskite structures of the compound AMO3

Abstract

Transition metal oxides occur with a huge diversity of crystal structures, which is manifested in the abundance of their physical and chemical properties. The structure-property relationship in these transition metal oxides is greatly influenced by the orbital states of their electrons and their correlations [1]. Transition metal oxides show a variety of phenomena, which are technologically important and have found many applications in industry. Most of the interesting phenomena in condensed matter physics such as ferromagnetism, antiferromagnetism, ferrimagnetism, colossal magnetoresistance, ferroelectricity, antiferroelectricity, piezoelectricity, high Tc superconductivity, Mott transition, spin state transition multiferroicity, spin glass state, spin ice state and quantum spin liquid state are exhibited by transition metal oxides. All these emergent phenomena observed in the transition metal oxides are owing to the presence of d electrons and oxygen ions surrounding it.