INTERFACIAL DEFECTS IN YBA2CU3O7/PRBA2CU3O7-HETEROSTRUCTURES ON SRTIO3 SUBSTRATES

被引：15

作者：

JIA, CL

KABIUS, B

SOLTNER, H

POPPE, U

URBAN, K

机构：

[1] Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, W-5170 Jülich

来源：

PHYSICA C | 1990年 / 172卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(90)90646-V

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The interfaces of YBa2Cu3O7/PrBa2Cu3O7/YBa2Cu2O7-heterostructures grown exitaxially on [001]-SrTiO3 substrates were investigated by means of high-resolution electron microscopy and electron diffraction. Misfit dislocation arrays could be observed in the YBa2Cu3O7/PrBa2Cu3O7 interfaces and inside the first YBa2Cu3O7 layer close to the YBa2Cu3O7/SrTiO3 interface. In the PrBa2Cu3O7 layers a structural modulation was found near the interface. This is explained by the ordering of oxygen vacancies due to compressive strain induced by the adjoining YBa2Cu3O7 layers.

引用

页码：81 / 89

页数：9

共 17 条

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