Abstract

The influence of the anisotropy of the crystalline growth rate on the microstructure and morphology of YBaCuO thin film deposited by laser ablation is studied by means of transmission electron microscopy. The results obtained from high resolution lattice imaging and large angle convergent beam diffraction, together with the investigations of the thin film surface morphology show the strong influence of the different crystalline growth rates on both the internal stress present in the YBaCuO film and the roughness of the outer surface. These results should be of prime importance for the superconducting properties. This is an essential in tailoring these thin films for device applications.

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