New aspects in laser ablation process of the YBCO thin films

摘要

In this paper, we report some experimental results concerning new aspects in laser ablation process of the YBCO thin film. Both structural and superconducting properties of the studied films were analyzed by transmission electron microscopy, selected area electron diffraction, elastic recoil detection analysis, Raman spectra, atomic force microscopy images and the ac magnetic susceptibility. We have obtained the epitaxial films with relative large area of c-axis grown film and high critical temperature, without any post ablation annealing process.