TITLE:
Synthesis and Characterization of GLBCO-123 Phase: Gd1-xLxBa2Cu3O7-δ (x = 0.0 - 0.5)
AUTHORS:
Made Sumadiyasa, I. Gusti Agung Putra Adnyana, Nyoman Wendri, Putu Suardana
KEYWORDS:
Gd1-xLaxBa2Cu3O7-δ Phase, La Substitution, Lattice Parameters, Orthorhombic, Oxygen Content
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.5 No.11,
November
17,
2017
ABSTRACT: Investigation of the substitution process can provide a better understanding of the superconducting mechanisms in cuprous oxide materials. In this work the effects of substitution Lanthanum (La) for Gadolinium (Gd) on the structure and oxygen content for x = 0.0 - 0.5 in the compound Gd1-xLaxBa2Cu3O7-δ (GLBCO-123 phase) have been investigated. Samples were synthesized by using a wet-mixing method from powders of Gd2O2, La2O2, BaO, CuO, and solution of HNO3. Based on the analysis of XRD data and SEM-EDXA, it confirms that the sample has formed the GLBCO-123 phase, as expected. It has been obtained that the lattice parameters a and c are increased while the parameter b is slightly decreased with increasing content of Lanthanum. The oxygen content slightly decreased and structure of the Gd1-xLaxBa2Cu3O7-δ phase changed from orthorhombic to tetragonal with increasing the content of Lanthanum.