Abstract
Abstract
In order to improve the electrical transport properties of REBa2Cu3O7−δ
nanocomposite films, SmBa2Cu3O7−δ
films with and without BaHfO3 nanoparticles were grown by chemical solution deposition, and their microstructural and transport properties were investigated in a detailed study using transmission electron microscopy and transport measurements in magnetic fields up to 24 T. The optimization process of the crystallization step (temperature and oxygen partial pressure) as well as an aging effect, which is due to the release of trapped fluorine, are described. Critical temperature and critical current densities surprisingly improve initially during the aging. Due to the complex microstructure, the additional BaHfO3 nanoparticles have only a positive effect at low magnetic fields for our samples.
Funder
High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University
Deutscher Akademischer Austauschdienst
Japan Society for the Promotion of Science
Subject
Materials Chemistry,Electrical and Electronic Engineering,Metals and Alloys,Condensed Matter Physics,Ceramics and Composites
Cited by
11 articles.
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