Investigation on the substitution of Y in bismuth cuprates (2212)

Authors

Marie Josephine Madriñan ⋅ PH National Institute of Physics, University of the Philippines Diliman
Luis De Luna ⋅ PH National Institute of Physics, University of the Philippines Diliman
Jean Laniog ⋅ PH National Institute of Physics, University of the Philippines Diliman
Susan Cabillon ⋅ PH Industrial Technology Development Institute, Department of Science and Technology
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Previous work on rare-earth substitution for Ca in Bi 2212 bulk superconductors have led to the belief that the rare-earth ions substitute in a uniform manner, as suggested by the smooth variation of the lattice parameters with increasing amount of rare-earth substitution. In this work, results of investigations on the melting behavior of Y-substituted Bi 2212 bulk superconductors are presented. Based on these results, there is reason to believe that two types of Bi 2212 phases coexist – a Ca-rich phase and a rare earth-rich phase. This indicates non-uniform substitutional behavior of Y for Ca in Bi 2212, which deviates from the presently accepted belief of uniform substitutional behavior.

Downloads

Issue

1994: Proceedings of the 12th National Physics Congress of the Samahang Pisika ng Pilipinas

Article ID

SPP-1994-CM-17

Section

Condensed Matter Physics, Superconductivity and Materials Physics

Published

1994-10-15

How to Cite

[1]

MJ Madriñan, L De Luna, J Laniog, S Cabillon, and RV Sarmago, Investigation on the substitution of Y in bismuth cuprates (2212), Proceedings of the Samahang Pisika ng Pilipinas 12, SPP-1994-CM-17 (1994). URL: https://proceedings.spp-online.org/article/view/SPP-1994-CM-17.