Effect of temperature profile on the growth of high-quality Bi₂Sr₂CaCu₂O_8+δ single crystals

Authors

Minerva M. Cruz ⋅ PH National Institute of Physics, University of the Philippines Diliman
Katrina C. Molina ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arnel A. Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The availability of bulk single crystals is indispensable for the systematic study of the intrinsic properties of superconducting oxides. Hence, there is a need to find an optimum method of growing these materials. In this manner, the flux method has proved to be an effective technique of growing large BSCCO (2212) single crystals due to the relative ease with which these single crystals are produced.
In our previous study, we were able to grow large superconducting (needle-like and plate-like) Bi-2212 single crystals using the KCl/KCl-Bi₂O₃ flux methods. However, the crystals produced were thin and had rough, uneven surface due to the presence of the residual flux that adhered on the crystals. In this study, we were able to improve the quality of the crystals by removing this residual flux with ether and nitric acid. Also, the preferential growth of the crystals was determined and platelets of good quality were obtained by modifying the temperature program.

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Issue

1999: Proceedings of the 17th National Physics Congress of the Samahang Pisika ng Pilipinas

Article ID

SPP-1999-MS-05

Section

Materials Science

Published

1999-10-22

How to Cite

[1]

MM Cruz, KC Molina, RV Sarmago, and AA Salvador, Effect of temperature profile on the growth of high-quality Bi2Sr2CaCu2O8+δ single crystals, Proceedings of the Samahang Pisika ng Pilipinas 17, SPP-1999-MS-05 (1999). URL: https://proceedings.spp-online.org/article/view/SPP-1999-MS-05.