Can AFM measures the roughness of the sample? How? What are the largest area dim.s?
Yes, it can. With softwares like Nanoscope or Gwyddion you can evaluate the roughness automatically, see
http://gwyddion.net/documentation/user-guide-en/statistical-analysis.html
Yes ,It's possible to measure roughness of a selected area with related softwares.I my self use Gwyddion and find it user friendly and easy. It has some thing like ruller and give you roughness of a selected region.
Good luck.
Yes, AFM can measure the roughness of samples. You can measure a line scan or a rectangular area scan. The scan area depends on the AFM tool: Bruker Innova, I guess, has a 100 um x 100 um scan area. For other tools, it can be larger. But we usually scan 5um x 5 um or 10 um x 10 um area.
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