Anisotropic growth of Cr Ad-layer: a one-dimensional nanostructure

被引：4

作者：

Kim, EP

Kim, TH

Kim, ST

Kuk, Y

Kahng, SJ

机构：

[1] Korea Univ, Dept Phys, Seoul 136701, South Korea

[2] Seoul Natl Univ, Ctr Sci Nanometer Scale, Seoul 151742, South Korea

[3] Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea

来源：

THIN SOLID FILMS | 2003年 / 441卷 / 1-2期

关键词：

scanning tunneling microscope; epitaxy; nanostructures; structural properties;

D O I：

10.1016/S0040-6090(03)00944-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The growth behavior of Cr ad-layer on W(110) surface was studied with scanning tunneling microscopy. Two-dimensional islands are formed at Cr coverage of similar to0.3 monolayer, suggesting typical homogeneous nucleation. The growth mode undergoes a-transition to the formation of organized nano-scale lines at the coverage of >0.5 monolayer. The grown lines are aligned along [(1) over bar 11] and [1 (1) over bar1] directions at room temperature. At an elevated temperature, trenches are formed in a two-dimensional wetting layer with high aspect ratios. Possible microscopic origins for the observed structures are discussed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：317 / 320

页数：4

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