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Probe-surface interaction mapping in amplitude modulation atomic force microscopy by integrating amplitude-distance and amplitude-frequency curves
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10.1063/1.2756271
/content/aip/journal/apl/91/2/10.1063/1.2756271
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/2/10.1063/1.2756271
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) sketch of the procedure and (b) 3D plot obtained for HOPG at ambient conditions with a cantilever (FESP) with . The frequency sweep was from low to high frequencies, the free amplitude is , the number of curves is 128: —the contour of free oscillations, —the repulsion domain, and and —the attraction domains. The dotted line represents the vertical section of the surface by plane which intersects the boundary between and domains twice. The top and bottom thick arrows show directions of 2D projection imaging along amp and axes corresponding in Figs. 2 and 3(c).

Image of FIG. 2.
FIG. 2.

(Color online) (a) 2D representation of plot for Fig. 1. (b) curves obtained at separations shown by eight horizontal bars in (a). [(c) and (d)] Schematic of probe-surface mutual positions in turnover points of cantilever oscillations in (c) repulsion and (d) attraction regimes.

Image of FIG. 3.
FIG. 3.

Three characteristic types of [(a), (c), and (e)] patterns and [(b), (d), and (f)] curves observed for HOPG with the cantilever in Fig. 1 at positive frequency sweep at [(a) and (b)] low, [(c) and (d)] intermediate, and [(e) and (f)] high driving amplitudes. Dotted lines mark positions of free oscillation contours.

Image of FIG. 4.
FIG. 4.

Amplitude, phase, and deflection curves (, all other parameters are as in Fig. 1) indicate two attraction regimes (shown shadowed) at large and small separations at intermediate driving.

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/content/aip/journal/apl/91/2/10.1063/1.2756271
2007-07-13
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Probe-surface interaction mapping in amplitude modulation atomic force microscopy by integrating amplitude-distance and amplitude-frequency curves
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/2/10.1063/1.2756271
10.1063/1.2756271
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