Phase compositions on a melt-quenched and post-annealed Bi-2212 sedimentation film

Authors

Benjamin Villaflor ⋅ PH National Institute of Physics, University of the Philippines Diliman
Jan Isaac Bugante ⋅ PH National Institute of Physics, University of the Philippines Diliman
Mel Anthony Duldulao ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

A Bi-2212 film prepared via sedimentation deposition with melt-quenching and post-annealing at 9500^oC promotes formation of rods and spheroidal aggregates on its surface. Phase contrast imaging confirms that these precipitates are of different phase to Bi-2212. By EDX analysis, the spheroidal aggregates are seen to be Ca-rich, while the rods are (Sr,Ca)CuO₂compounds. EDX analysis on smooth parts of the film implies that they are of Bi-2212 composition. Through XRD analysis, the film was seen to be well c-axis oriented. Temperature vs. normalized resistance shows that the film has T_C~86 K.

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Issue

2011: Proceedings of the 29th Samahang Pisika ng Pilipinas National Physics Congress

Article ID

SPP2011-5C-4

Section

Condensed Matter and Materials Physics

Published

2011-10-24

How to Cite

[1]

B Villaflor, JI Bugante, MA Duldulao, and R Sarmago, Phase compositions on a melt-quenched and post-annealed Bi-2212 sedimentation film, Proceedings of the Samahang Pisika ng Pilipinas 29, SPP2011-5C-4 (2011). URL: https://proceedings.spp-online.org/article/view/SPP2011-5C-4.