Spontaneous growth of Ag and Pb nanopucks on electronic patterns of 2D Pb quantum islands

被引：1

作者：

Chiu, YP

Lin, HY

Fu, TY

Chang, CS ^{[1
]}

Tsong, TT

机构：

[1] Acad Sinica, Inst Phys, Taipei, Taiwan

[2] Natl Taiwan Normal Univ, Dept Phys, Taipei 117, Taiwan

[3] Natl Cent Univ, Dept Chem Engn, Chungli 32054, Taiwan

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A | 2005年 / 23卷 / 04期

关键词：

D O I：

10.1116/1.1897698

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Two-dimensional ordered Ag and Pb nanopuck arrays have. been grown on two different types of Pb quantum islands. Electronic patterns on the surfaces of Pb islands serve as the templates for the growth. Nanopucks of different materials display dissimilar growth behaviors, reflecting the varied interaction strength between adatoms and the substrate. Due to a strong interaction existing between Ag atoms and the substrate, perfectly ordered Ag nanopucks of nearly identical size can be fabricated. The Ag array can sustain a wide growth temperature range from 70 K to 150 K, while for Pb nanopucks, the similar result can be obtained only below 70 K. The stronger interaction also synchronizes the behavior of Ag nanopucks with that of the Pb island substrate, which exhibits a bilayer alternating character. (c) 2005 American Vacuum Society.

引用

页码：1067 / 1071

页数：5

共 17 条

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