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Dynamics of repulsive dual-frequency atomic force microscopy
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10.1063/1.3080209
/content/aip/journal/apl/94/6/10.1063/1.3080209
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/6/10.1063/1.3080209

Figures

Image of FIG. 1.
FIG. 1.

Amplitude and phase curves of both modes for the amplitude ratios , 20, 15, 12, 10, 6, and 4. The curves with (blue) and (red) are marked by * and #, respectively. The black arrow indicates the direction of decreasing .

Image of FIG. 2.
FIG. 2.

(a) Interaction forces during approach for (red curve # in Fig. 1). The frames for both time series are indicated. (b) Time series data in a quasiperiodic regime. A period of 15 oscillations prevails for . (c) Time series obtained in the intermittent regime. Phases of noncontact and repulsive contact occur intermittently. The insets in (b) and (c) show typical force pulses.

Image of FIG. 3.
FIG. 3.

FFT spectra at for various amplitude ratios. For the harmonics of the driving frequency and intermodulation products are indicated. Frequencies following the rule are marked by “#” and those according to by “*.”

Tables

Generic image for table
Table I.

Mean values and standard deviation (brackets) of amplitude and phase values. Last line: , .

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/content/aip/journal/apl/94/6/10.1063/1.3080209
2009-02-10
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Dynamics of repulsive dual-frequency atomic force microscopy
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/6/10.1063/1.3080209
10.1063/1.3080209
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