In this short report, we describe some of the structural defects present in laser deposited Y-Ba-Cu-O thin films. Many of the defects observed are polytypoidic variants, related to the layered structure of these cuprates. One possible model by which flux pinning can be achieved is presented.
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Ramesh, R., Hwang, D.M., England, P. et al. Structural Defects in Thin Films Of High TC Superconductors. MRS Online Proceedings Library 169, 809–812 (1989). https://doi.org/10.1557/PROC-169-809