Structure-Property Correlations in Monovalent Mixed Oxide La_(1-x)K_xMnO_3 (0.0 ≤ x ≤ 0.3) Manganites

摘要

Substitution of monovalent K~+ at La~(3+) in solid state reaction synthesized La_(1-x)K_xMnO_3 (0.0 ≤ x ≤ 0.3) manganites results in metallic behavior. Increase in K~+ content (x ≤ 0.15) enhances the FM interactions through ZDE mechanism while for higher x > 0.15, structural disorder and AFM interactions between Mn~(4+) ions become prominent.