Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The counter-surface is held by two small beams. After the experiments, the beams can be broken and the counter-surface flipped upright in its hinges with a probe needle, allowing easy access with an AFM cantilever tip. The AFM has been used to measure the surface roughness (Figure 6) on the sidewall at the position where the arrow indicating ‘Counter-surface’ is pointing.
