Influence of Sintering Temperature on the Structure and Electrical Transport Properties of La0.7Ba0.1Sr0.2Mn0.85Cu0.15O3 Manganites
Dhawud Sabilur Razaq(a), Budhy Kurniawan(a*), Agung Imaduddin(b)
(a) Department of Physics, Universitas Indonesia, Depok 16424, Indonesia
* budhy.kurniawan[at]sci.ui.ac.id
(b) Research Center for Metallurgy and Materials, Indonesian Institute of Sciences (LIPI), Gedung 470, Puspiptek, South Tangerang 15314, Banten, Indonesia
Abstract
A systematic study of the La0.7Ba0.1Sr0.2Mn0.85Cu0.15O3 manganites have been conducted, mainly to understand the influence of sintering temperature on structure, microstructure, and electrical transport properties in the materials. Polycrystalline sample of La0.7Ba0.1Sr0.2Mn0.85Cu0.15O3 were prepared using sol-gel method and sintered at 1100 °C and 1200 °C. X-ray diffraction result shows that sintering temperature does not affect the crystal structure of the materials which remain rhombohedral with R-3c space group. a more detailed examination shows that sintering temperature change the unit cell volume,
Keywords: Structure; Electrical Transport; Sintering; Percolation Model; Manganites
Topic: Material Science