Vertical manipulation of individual atoms by a direct STM tip-surface contact on Ge(111)

被引：94

作者：

Dujardin, G

Mayne, A

Robert, O

Rose, F

Joachim, C

Tang, H

机构：

[1] Univ Paris 11, Lab Photophys Mol, F-91405 Orsay, France

[2] Ctr Elaborat Mat & Etud Struct, UPR 8011, F-31055 Toulouse 4, France

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.80.3085

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new type of vertical manipulation with the scanning tunneling microscope (STM), involving only direct STM tip-surface contact at zero bias voltage, is used to extract, in a very controlled manner, individual germanium atoms from a Ge(111) surface. The duration of the extraction mechanism is found to be surprisingly long, of the order of 10 ms. To explain these effects, a complete calculation of the STM tip approach and retraction sequence is performed by optimizing the total junction geometry at each step.

引用

收藏

页码：3085 / 3088

页数：4

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