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Phase imaging with intermodulation atomic force microscopy
Stockholm University, Faculty of Science, Department of Physics.
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2010 (English)In: Ultramicroscopy, ISSN 0304-3991, E-ISSN 1879-2723, Vol. 110, no 6, 573-577 p.Article in journal (Refereed) Published
Abstract [en]

Intermodulation atomic force microscopy (IMAFM) is a dynamic mode of atomic force microscopy (AFM) with two-tone excitation. The oscillating AFM cantilever in close proximity to a surface experiences the nonlinear tip-sample force which mixes the drive tones and generates new frequency components in the cantilever response known as intermodulation products (IMPs). We present a procedure for extracting the phase at each IMP and demonstrate phase images made by recording this phase while scanning. Amplitude and phase images at intermodulation frequencies exhibit enhanced topographic and material contrast.

Place, publisher, year, edition, pages
2010. Vol. 110, no 6, 573-577 p.
Keyword [en]
Atomic force microscopy, Intermodulation, Multifrequency AFM, Phase imaging
National Category
Natural Sciences
URN: urn:nbn:se:su:diva-68197DOI: 10.1016/j.ultramic.2010.02.012ISI: 000279482900002OAI: diva2:472108
authorCount :5Available from: 2012-01-03 Created: 2012-01-03 Last updated: 2012-01-03Bibliographically approved

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