JUNTURAS JOSEPHSON BASADAS EN SUPERCONDUCTORES DE ALTA TEMPERATURA

Pedro Prieto; Wilson Lopera

doi:10.18257/raccefyn.25(96).2001.2804

Vol. 25 No. 96 (2001), Physical Sciences

Vol. 25 No. 96 (2001)

JOSEPHSON JUNCTIONS BASED ON HIGH TEMPERATURE SUPERCONDUCTORS

Physical Sciences

https://doi.org/10.18257/raccefyn.25(96).2001.2804

Published 2024-08-01

Pedro Prieto⁺⁻
Wilson Lopera⁺⁻

Pedro Prieto

Grupo de Películas Delgadas, Departamento de Física, Universidad del Valle, A.A. 25360, Cali, Colombia.

Wilson Lopera

Grupo de estado Sólido, Instituto de Física, Universidad de Antioquía, A.A. 1226, Medellín, Colombia.

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How to Cite

Prieto, P., & Lopera, W. (2024). JOSEPHSON JUNCTIONS BASED ON HIGH TEMPERATURE SUPERCONDUCTORS. Revista De La Academia Colombiana De Ciencias Exactas, Físicas Y Naturales, 25(96), 381–394. https://doi.org/10.18257/raccefyn.25(96).2001.2804

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Abstract

The electronic applications of superconductivity are based on the Josephson effect. The fabrication of Josephson devices based on high-temperature superconductors (HT) offers high working temperatures and efficiency. Nevertheless, the complex characteristics of these materials present a wide range of challenges in the development of high-quality devices based on these compounds. In this paper, we describe the main features of the Josephson effect and the different systems developed to fabricate Josephson junctions with HT. We have focused on Grain Boundary Josephson Junctions, demonstrating how to enhance the superconducting properties of samples by doping YBa₂Cu₃O_7−δ with silver. Finally, we describe the fabrication and characterization process for Step-Stack Josephson Junctions based on Bi₂Sr₂CaCo₂O_8+δ, which exhibit high values of the figure of merit.

https://doi.org/10.18257/raccefyn.25(96).2001.2804

Keywords

Josephson Effect | Junctions | Superconductivity | Cuprates | Epitaxial Thin Films

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