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Materials 2019, 12(6), 861;

Hybrid Superconducting-Ferromagnetic [Bi2Sr2(Ca,Y)2Cu3O10]0.99(La2/3Ba1/3MnO3)0.01 Composite Thick Films

National Institute of Telecommunications (Inatel), Santa Rita do Sapucaí-MG 37540-000, Brazil
Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universitaẗ Erlangen-Nürnberg, Martensstrasse 7, 91058 Erlangen, Germany
Photovoltaic Research Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Facultad de Ciencias Naturales y Matemáticas, Universidad de Ibagué, Ibagué A.A. 730001, Colombia
Departamento de Física, Universidad del Valle, Cali A.A. 25360, Colombia
Centro de Excelencia en Nuevos Materiales (CENM), Universidad del Valle, Cali A.A. 25360, Colombia
Departamento de Física, Grupo de Ingeniería en Nuevos Materiales, Universidad del Valle, Cali A.A. 25360, Colombia
Authors to whom correspondence should be addressed.
Received: 11 February 2019 / Revised: 1 March 2019 / Accepted: 6 March 2019 / Published: 14 March 2019
(This article belongs to the Section Materials Physics)
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We report here on the development of composite thick films exhibiting hybrid superconducting and ferromagnetic properties, produced through a low-cost, fast, and versatile process. These films were made of high Tc cuprate superconductor Bi2Sr2(Ca,Y)2Cu3O10 (with Y:Ca ratio of 5%) and ferromagnetic perovskite La2/3Ba1/3MnO3, synthesized by melting-quenching annealing process on a MgO substrate. Curie temperature for La2/3Ba1/3MnO3 was determined (~336 K ) by magnetic field assisted thermogravimetric analysis (TGA), while superconducting behavior of Bi2Sr2(Ca,Y)2Cu3O10/MgO films was observed through temperature-dependent resistance measurements. Superconducting features in our hybrid compound were corroborated by temperature-dependent resistivity and magnetic susceptibility. View Full-Text
Keywords: thick films; composite materials; superconductors; ferromagnetism; manganites thick films; composite materials; superconductors; ferromagnetism; manganites

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Mejía-Salazar, J.R.; Perea, J.D.; Castillo, R.; Diosa, J.E.; Baca, E. Hybrid Superconducting-Ferromagnetic [Bi2Sr2(Ca,Y)2Cu3O10]0.99(La2/3Ba1/3MnO3)0.01 Composite Thick Films. Materials 2019, 12, 861.

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