Periodic step structure of clean and YBa2Cu3O7-delta-covered vicinal SrTiO3(001) surfaces

被引：27

作者：

Haage, T

Habermeier, HU

Zegenhagen, J

机构：

[1] Max-Planck-Inst. Festkorperforschung, D-70569 Stuttgart

来源：

SURFACE SCIENCE | 1997年 / 370卷 / 01期

关键词：

growth; scanning tunneling microscopy; SrTiO3; superconducting films; surface structure; morphology; roughness; and topography; YBa2Cu3O7-delta;

D O I：

10.1016/S0039-6028(96)01174-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have studied the structure of a stable vicinal SrTiO3(001) surface by UHV scanning tunneling microscopy. We find that the regular nanoscale step structure on the vicinal surface strongly influences the growth of c-axis-oriented YBa2Cu3O7-delta (YBCO) thin films. It generates an almost periodic surface structure of the YBCO films. This substrate-mediated control of the film growth is particularly important, because the resultant YBCO microstructure leads to an in-plane anisotropy of the transport properties in the high-temperature superconducting material.

引用

页码：L158 / L162

页数：5

共 10 条

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