Observation of the crystal structure and impurity phases of Bi2Sr2CaCu2OY films grown with polycrystalline Al2O3
Abstract
The addition of flux and use of alumina, either as substrate or crucible holder, in the formation of high temperature superconducting films and single crystals are some of the simplest ways to form good quality samples. This paper suggests two possible setups and merged these two techniques. The XRD patterns show that the new setups were able to form c-axis oriented Bi2Sr2CaCu2OY films with Bi2Sr2Cu1OY and other impurity phases due to the use of alumina. The SEM images show the formation of a flat film with various impurity phases on the surface using both techniques.
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