Stabilizing Single Atom Contacts by Molecular Bridge Formation

被引：33

作者：

Huisman, Everardus H. ^{[1
]}

Trouwborst, Marius L. ^{[1
]}

Bakker, Frank L. ^{[1
]}

de Boer, Bert ^{[1
]}

van Wees, Bart J. ^{[1
]}

van der Molen, Sense J. ^{[1
,2
]}

机构：

[1] Univ Groningen, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands

[2] Leiden Univ, Kamerlingh Onnes Lab, NL-2333 CA Leiden, Netherlands

来源：

NANO LETTERS | 2008年 / 8卷 / 10期

关键词：

D O I：

10.1021/nl801983z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Gold-molecule-gold junctions can be formed by carefully breaking a gold wire in a solution containing dithiolated molecules. Surprisingly, there is little understanding on the mechanical details of the bridge formation process and specifically on the role that the dithiol molecules play themselves. We propose that alkanedithiol molecules have already formed bridges between the gold electrodes before the atomic gold-gold junction is broken. This leads to stabilization of the single atomic gold junction, as observed experimentally. Our data can be understood within a simple spring model.

引用

页码：3381 / 3385

页数：5

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