POLYTYPOIDIC SUPERLATTICES IN Y-BA-CU-O THIN-FILMS

被引：13

作者：

RAMESH, R ^{[1
]}

HWANG, DM ^{[1
]}

RAVI, TS ^{[1
]}

INAM, A ^{[1
]}

WU, XD ^{[1
]}

VENKATESAN, T ^{[1
]}

机构：

[1] RUTGERS STATE UNIV,PISCATAWAY,NJ 08854

来源：

PHYSICA C | 1990年 / 171卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(90)90449-O

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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.

引用

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页码：14 / 18

页数：5

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