Fabrication of superconducting quantum interference devices based on Bi2Sr2CaCu2O8+δ constriction-type junctions

Authors

  • Benito A. Baje ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Fritz B. Awitan ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Glaiza S. Blanca ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The direct-current superconducting quantum interference devices (dc-SQUIDs) based on Superconducting-Constriction-Superconducting (S-C-S) junctions have been successfully fabricated and studied from caxis oriented Bi2Sr2CaCu2O8+δ (Bi-2212) films grown on MgO substrate by combined sedimentation-deposition, liquid phase sintering and annealing technique. Films had a superconducting transition temperature, Tc ¬ 57 K. Reduction of Tc never larger than 4 K indicates that the superconducting properties of the films are not appreciably altered after patterning. However, a broadening of the transition width and a decrease in the slope at the metallic regime of the R-T curve was observed. These changes in the properties can be attributed to the photoresist contamination and the effect of the etchant on the film.

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Published

2008-10-22

Issue

2008: Proceedings of the 26th Samahang Pisika ng Pilipinas Physics Congress

Section

Materials Physics

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How to Cite

[1]
“Fabrication of superconducting quantum interference devices based on Bi2Sr2CaCu2O8+δ constriction-type junctions”, Proc. SPP, vol. 26, no. 1, pp. SPP–2008, Oct. 2008, Accessed: May 06, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2008-4A-04