Dynamic AFM using the FM technique with constant excitation amplitude

被引：19

作者：

Gotsmann, B ^{[1
]}

Fuchs, H ^{[1
]}

机构：

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

来源：

APPLIED SURFACE SCIENCE | 2002年 / 188卷 / 3-4期

关键词：

AFM; frequency modulation; constant excitation; dynamic force spectroscopy;

D O I：

10.1016/S0169-4332(01)00950-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dynamic atomic force microscopy using the frequency modulation technique is investigated for the case that the excitation amplitude is kept constant. This mode of operation has very unique properties. A computer simulation is used to investigate the distance dependence of the measurement signals frequency and amplitude using various conservative and non-conservative interaction forces. It is shown how the two measurement channels are interlinked and influenced by both conservative and dissipative interactions. Further, discontinuous frequency shift versus distance curves as reported in the literature were not obtained. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：355 / 362

页数：8

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