Author(s)

Made Sumadiyasa, I. Gusti Agung Putra Adnyana, Nyoman Wendri, Putu Suardana

Department of Physics, Faculty of Mathematics and Natural Sciences, Udayana University, Badung, Indonesia.

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 Gd_1-xLa_xBa₂Cu₃O_7-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 Gd_1-xLa_xBa₂Cu₃O_7-δ phase changed from orthorhombic to tetragonal with increasing the content of Lanthanum.

Gd_1-xLa_xBa₂Cu₃O_7-δ Phase, La Substitution, Lattice Parameters, Orthorhombic, Oxygen Content

Sumadiyasa, M. , Adnyana, I. , Wendri, N. and Suardana, P. (2017) Synthesis and Characterization of GLBCO-123 Phase: Gd_1-xL_xBa₂Cu₃O_7-δ (x = 0.0 - 0.5). Journal of Materials Science and Chemical Engineering, 5, 49-57. doi: 10.4236/msce.2017.511005.