Synthesis of YBa₂Cu₃O_7-δ (Y123) High-T_c superconductors from Y:Ba:Cu = 3:5:8 stoichiometric ratio

Authors

Jerine A. Amado ⋅ PH National Institute of Physics, University of the Philippines Diliman
Carlo A. Arcilla ⋅ PH National Institute of Geological Sciences, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Superconducting compound exhibiting diamagnetism at 88.9 K was synthesized using the stoichiometric ratio Y:Ba:Cu = 3:5:8 via standard solid state reaction. Superconducting transition was observed as early as after the first heat treatment. Transition temperature T_c increased to 89.6 K and 90.2 K after the second sintering and annealing in the absence of flowing oxygen, respectively. XRD powder spectra reveals correspondence of reflecting peaks to YBa₂Cu₃O₇(Y123). Samples' granular nature is surveyed from SEM micrographs and ac magnetic susceptibility measurements. This strategic preparation offers huge economic advantages in thin film applications requiring good and stable stoichiometry from the bulk material.

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Issue

2015: Proceedings of the 33rd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2015-PA-09

Section

Poster Session PA

Published

2015-06-03

How to Cite

[1]

JA Amado, CA Arcilla, and RV Sarmago, Synthesis of YBa2Cu3O7-δ (Y123) High-Tc superconductors from Y:Ba:Cu = 3:5:8 stoichiometric ratio, Proceedings of the Samahang Pisika ng Pilipinas 33, SPP-2015-PA-09 (2015). URL: https://proceedings.spp-online.org/article/view/1168.