Electric transport and magnetism in novel layered cobaltates with rare-earths

Abstract

The project is directed to a new class of intercalation systems Ln(x)CoO2 (Ln=La,Y,rare-earth), prepared by an ionic exchange from the isostructural sodium cobaltate. Their structure is based on hexagonal layers of the edge-sharing CoO6 octahedra that alternate along the c-axis with layers of lanthanide ions. Through the variable content of Ln3+ (x