Phase Behavior of La1-xMnO3-1.5x with Trivalent Manganese Ion
Defect perovskite, La1-xMnO3-1.5x (x=0.00-0.10), was synthesized by conventional ceramic method and phase transition was measured by X-ray diffractometry, electrical conductivity, thermal diffusivity and thermal analysis. La1-xMnO3-1.5x (x=0.00-0.09) have single orthorhombic phase corresponding to GdFeO3 type perovskite structure at room temperature, while have rhombohedral structural at high temperature. The transition temperatures observed from electric conductivity, DSC, thermal diffusivity were mostly in agreement and they slightly decrease with increasing x.
S.-G. Kang and T. Kobayashi
M. Kobayashi et al., "Phase Behavior of La1-xMnO3-1.5x with Trivalent Manganese Ion", Materials Science Forum, Vols. 449-452, pp. 741-744, 2004