Development of one-dimensional band structure in artificial gold chains

被引：398

作者：

Nilius, N

Wallis, TM

Ho, W ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[2] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

SCIENCE | 2002年 / 297卷 / 5588期

关键词：

D O I：

10.1126/science.1075242

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The ability of a scanning tunneling microscope to manipulate single atoms is used to build well- defined gold chains on NiAl(110). The electronic properties of the one-dimensional chains are dominated by an unoccupied electron band, gradually developing from a single atomic orbital present in a gold atom. Spatially resolved conductance measurements along a 20-atom chain provide the dispersion relation, effective mass, and density of states of the free electron like band. These experiments demonstrate a strategy for probing the interrelation between geometric structure, elemental composition, and electronic properties in metallic nanostructures.

引用

页码：1853 / 1856

页数：4

共 23 条

[1] Electronic structure of atomic chains on vicinal Si(111)-Au [J].