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New Gd4-6-10 and Gd5-7-12 Cuprate Superconductors

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Abstract

This paper describes the Gdx−2BaxCu2x−2Oδ (x = 6, 7) cuprate system synthesis using the conventional solid-state reaction method. Rietveld analysis of X-ray patterns evidences that samples crystallize in Pmm2 (#25) space group at room temperature with lattice parameter a = 3.8807 Å, b = 3.8735 Å, c = 38.7094 Å for Gd4Ba6Cu10Oδ and a = 3.8680 Å, b = 3.8763 Å, c = 46.5065 for Gd5Ba7Cu12Oδ. Resistivity measurements evidence zero-resistance state, which is a typical behavior of superconducting materials at bulk critical temperature of 15.5 K for Gd4Ba6Cu10Oδ and 22.1 K for Gd5Ba7Cu12Oδ.

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Acknowledgements

This work was funded by Gobernación de Boyacá (Colciencias Grant N°733).

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Authors and Affiliations

  1. Grupo Física de Materiales, Escuela de Física, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia

    G. I. Supelano, D. Martinez Buitrago & C. A. Parra Vargas

  2. Universidad Antonio Nariño, Boyacá, Colombia

    J. A. Mejía Gómez

  3. Laboratório de Supercondutividade e Materiais Avançados, Departamento de Física, Universidade Federal de Pernambuco, Recife, Pe, 50970-901, Brazil

    J. Albino Aguiar

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  1. G. I. Supelano
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Correspondence to G. I. Supelano.

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Supelano, G.I., Buitrago, D.M., Gómez, J.A.M. et al. New Gd4-6-10 and Gd5-7-12 Cuprate Superconductors. J Low Temp Phys 201, 418–425 (2020). https://doi.org/10.1007/s10909-020-02508-0

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  • DOI: https://doi.org/10.1007/s10909-020-02508-0

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