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Note: A simple, convenient, and reliable method to prepare gold scanning tunneling microscope tips
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10.1063/1.3293459
/content/aip/journal/rsi/81/1/10.1063/1.3293459
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/1/10.1063/1.3293459

Figures

Image of FIG. 1.
FIG. 1.

Experimental setup for electrochemical etching to prepare a gold STM tip.

Image of FIG. 2.
FIG. 2.

Optical micrographs of tips etched from a gold wire with radius of . Images show (a) an underetched tip (cut off current of 1 mA), (b) an optimal etched tip (cut off current of 0.5 mA), and (c) an overetched tip (cut off current of 0.05 mA).

Image of FIG. 3.
FIG. 3.

The scanning electron micrographs of etched tip with apex radius of tens of nanometer achieved using the optimal cut off current value of 0.5 mA. The images show the tip at (a) low magnification and (b) high magnification.

Tables

Generic image for table
Table I.

The tip etching result and corresponding etching current.

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/content/aip/journal/rsi/81/1/10.1063/1.3293459
2010-01-25
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Note: A simple, convenient, and reliable method to prepare gold scanning tunneling microscope tips
http://aip.metastore.ingenta.com/content/aip/journal/rsi/81/1/10.1063/1.3293459
10.1063/1.3293459
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