Nucleation and growth of Cr clusters and films on (100) SrTiO3 surfaces

被引：18

作者：

Fu, Q ^{[1
]}

Wagner, T ^{[1
]}

机构：

[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

来源：

THIN SOLID FILMS | 2002年 / 420卷

关键词：

MBE; scanning probe microscopy; surface diffusion; epitaxy; SrTiO3; Cr;

D O I：

10.1016/S0040-6090(02)00817-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The growth and thermal stability of Cr clusters and films on single crystal SrTiO3 was characterized by reflection high-energy electron diffraction, X-ray photoelectron spectroscopy, scanning probe microscopy, and transmission electron microscopy. It could be shown that the Cr clusters nucleated with different epitaxial orientations depending on the deposition temperature. At temperatures above 700 degreesC, a chemical reaction was observed to occur between Cr and SrTiO3, which resulted in a change of epitaxy. Quantification of Ostwald ripening experiments allowed us to extract the activation energy of surface diffusion for Cr adatoms on SrTiO3 as E-d=0.44 eV. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：455 / 460

页数：6

共 23 条

[1] Metal deposits on well-ordered oxide films [J].