Hysteretic behaviour of the tip-sample interaction on an InAs(110) surface:: an ab initio study

被引：8

作者：

Caciuc, V

Hölscher, H

Blügel, S

Fuchs, H

机构：

[1] Univ Munster, Inst Phys, D-48149 Munster, Germany

[2] Ctr Nanotechnol, D-14849 Munster, Germany

[3] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

来源：

NANOTECHNOLOGY | 2005年 / 16卷 / 03期

关键词：

D O I：

10.1088/0957-4484/16/3/011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We performed an ab initio study of tip-sample interactions between an SiH(3) tip and an InAs(110) surface when the tip is on top of As and In atoms. The calculated force curves and the corresponding normalized frequency shift curves exhibit discontinuities. We analysed these jumps in the force curves from the point of view of the structural changes of the InAs(110) surface due to its interaction with the tip and compared them with those obtained for an Si(111) 7 x 7 surface. The simulation of a complete NC-AFM image shows reasonable agreement with the experiment.

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页码：S59 / S62

页数：4

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