Epitaxial growth of YBa2Cu3O7 superconducting layers by chemical solution deposition

• Autores: García, Jorge, Bustamante, Angel, De Los Santos, Luis, González, J. C., León, Lizbet, Flores, Jesús, Osorio, Ana M., Albino Aguiar, J.
• Formato: artículo
• Fecha de Publicación: 2012
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/8685
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/fisica/article/view/8685
• Nivel de acceso: acceso abierto
• Materia: Capa delgada de YBCO; sustrato monocristalino de SrTiO3; crecimiento epitaxial de capas superconductoras.; YBCO thin layer; SrTiO3 monocrystalline substrate; epitaxial growth of superconducting layers.

We studied the optimun temperature to favor the epitaxial growth of YBa2Cu3O7 layers using threesintering temperatures of 820, 840 and 860℃, by the chemical solution deposition method in SrTiO3[100] monocrystalline substrates. Surface morphology was obtained by optical imaging, which qualitativelycharacterize the homogeneity and the grain presence along the c-axis. The X-ray diffractionconfirms the preferential epitaxial growth (00l) of the YBa2Cu3O7 crystals, resulting in a higher intensityof the profiles (00l) for the temperature of 860℃. The samples shown superconducting behaviourat critical temperature of 90 K, for the three cases.