TY - JOUR KW - Electron KW - Superlattices KW - High temperature superconductors KW - Laser pulses KW - Ceramic materials KW - Yttrium barium copper oxides KW - Oxide superconductors KW - Microscopes KW - Yttrium Compounds–Phase Diagrams KW - Polytypoidic Superlattices AU - Ramamoorthy Ramesh AU - D.M Hwang AU - T.S Ravi AU - A Inam AU - X.D Wu AU - T Venkatesan AB - 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. BT - Physica C: Superconductivity and its applications DO - 10.1016/0921-4534(90)90449-O LA - eng M1 - 1-2 N1 - cited By 12 N2 - 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. PY - 1990 SP - 14 EP - 18 T2 - Physica C: Superconductivity and its applications TI - Polytypoidic superlattices in Y-Ba-Cu-O thin films VL - 171 SN - 09214534 ER -