Polytypoidic superlattices in Y-Ba-Cu-O thin films

Publication Type

Journal Article

Authors

DOI

Abstract

We report, for the first time, the observation of natural, polytypoidic superlattice structures in pulsed laser deposited superconducting Y-Ba-Cu-O thin films. These structures correspond to ordered stacking sequences of the "123", "124" and "224" cationic ratios. Such structurally coherent, natural superlattice structures, either in the stable or metastable form, may be an attractive alternative for the artificial superlattices suggested for novel electronic applications. The results suggest the existence of a family of polytypoidic phases with different cationic compositions in the Y-Ba-Cu-O phase diagram. © 1990.

Journal

Physica C: Superconductivity and its applications

Volume

171

Year of Publication

1990

ISSN

09214534

Research Areas