1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Unstable amplitude and noisy image induced by tip contamination in dynamic force mode atomic force microscopy
Rent:
Rent this article for
USD
10.1063/1.2437196
/content/aip/journal/rsi/78/2/10.1063/1.2437196
http://aip.metastore.ingenta.com/content/aip/journal/rsi/78/2/10.1063/1.2437196
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic illustration for amplitude vs tip-sample distance of an oscillating cantilever in free space (far away from the sample surface) and in the working area where the oscillation amplitude is damped to 20%–80% of that in free space . The rest position of the cantilever is , which is the tip-sample distance. When becomes zero or less, the cantilever stops oscillating and mechanical contact is established, capable of manipulating contaminants if they are present on the tip apex.

Image of FIG. 2.
FIG. 2.

Amplitude-distance curves obtained on a gold film by a clean gold-coated tip (a) and by the same tip after being immersed in the thiol for the first (b) and the second (c) cycle of measurements, respectively. The change of the amplitude with respect to tip-sample distance is represented by open circles and filled gray circles when the tip is brought to (indicated by the black arrow) and retracted from (indicated by the gray arrow) the sample surface, respectively. The speed of the tip approaching to and retracting from the sample surface was .

Image of FIG. 3.
FIG. 3.

A dynamic force microscopy image (scan area: ) of a gold film obtained by the same tip that was (a) cleaned from thiol and (b) recontaminated by thiol. The set point for the two images was . Gray-scale range is for both images.

Image of FIG. 4.
FIG. 4.

The amplitude-distance curve (a) obtained using the tip that had collected the image shown in Fig. 3(b). The tip is first brought in contact with the sample followed by retraction. The black and gray arrows indicate tip approach and tip retraction, respectively. The three main peaklike features in the first amplitude-distance curve (a) when the tip is retracted from (filled circle) the sample are marked 1, 2, and 3. Magnification of the approaching amplitude-distance curve within the range of to is shown in (b). Also shown in (b) is a gray line showing the counterpart from a cleaned tip [Fig. 2(c)] and a broken line showing the set point of for imaging. The speed of the tip approaching to and retracting from the sample surface was .

Loading

Article metrics loading...

/content/aip/journal/rsi/78/2/10.1063/1.2437196
2007-02-05
2014-04-19
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Unstable amplitude and noisy image induced by tip contamination in dynamic force mode atomic force microscopy
http://aip.metastore.ingenta.com/content/aip/journal/rsi/78/2/10.1063/1.2437196
10.1063/1.2437196
SEARCH_EXPAND_ITEM