Crystal structure, thermal expansion and electrical conductivity of LaCoxNiyMozO3

Abstract

The effect of Mo-substitution was investigated for the LaCo_xNi_yMo_zO₃ system, obtaining single-phase perovskite for Mo-substitutions up to 20 at%. The crystal structure of the perovskite changed from rhombohedral, orthorhombic to monoclinic with increasing Mo-content. The thermal expansion was suppressed by Mo-substitution, while the electrical conductivity was also suppressed, but remained relatively high.