SCANNING TUNNELING MICROSCOPY PowerPoint PPT Presentation

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Title: SCANNING TUNNELING MICROSCOPY


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SCANNING TUNNELING MICROSCOPY
tunneling current
Small voltage applied between tip and sample
surface causes a tunneling current to flow The
strength of the current depends very sensitively
on the separation between the tip and surface By
monitoring the tunneling current we can monitor
the distance between the tip and the surface
STM image of a silicon surface
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