Fabrication of superconducting quantum interference devices based on Bi₂Sr₂CaCu₂O_8+δ constriction-type junctions

Authors

Benito A. Baje National Institute of Physics, University of the Philippines Diliman
Fritz B. Awitan National Institute of Physics, University of the Philippines Diliman
Glaiza S. Blanca National Institute of Physics, University of the Philippines Diliman
Roland V. Sarmago 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 Bi₂Sr₂CaCu₂O_8+δ (Bi-2212) films grown on MgO substrate by combined sedimentation-deposition, liquid phase sintering and annealing technique. Films had a superconducting transition temperature, T_c¬ 57 K. Reduction of T_c 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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Issue

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

Article ID

SPP-2008-4A-04

Section

Materials Physics

Published

2008-10-22

How to Cite

[1]

BA Baje, FB Awitan, GS Blanca, and RV Sarmago, Fabrication of superconducting quantum interference devices based on Bi2Sr2CaCu2O8+δ constriction-type junctions, Proceedings of the Samahang Pisika ng Pilipinas 26, SPP-2008-4A-04 (2008). URL: https://proceedings.spp-online.org/article/view/SPP-2008-4A-04.