Direct force balance method for atomic force microscopy lateral force calibration
Journal Article
·
· Review of Scientific Instruments
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
A new and simple calibration method for atomic force microscopy (AFM) is developed. This nonscanning method is based on direct force balances on surfaces with known slopes. The lateral force calibration is performed during force-distance measurements for normal force calibration. This method requires a substrate with known slopes, the z motion of the piezocalibrated, and the normal spring constant known. This technique determines not only the lateral detector sensitivity (N/V) but also the detector offset (V/m) and off-centering angle ({alpha}) for asymmetric cantilever-tip geometries. Because it is nonscanning, the AFM cantilever can be calibrated without dulling the tip.
- OSTI ID:
- 20779205
- Journal Information:
- Review of Scientific Instruments, Vol. 77, Issue 4; Other Information: DOI: 10.1063/1.2190210; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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