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1.  Quantitative multichannel NC-AFM data analysis of graphene growth on SiC(0001) 
Summary
Noncontact atomic force microscopy provides access to several complementary signals, such as topography, damping, and contact potential. The traditional presentation of such data sets in adjacent figures or in colour-coded pseudo-three-dimensional plots gives only a qualitative impression. We introduce two-dimensional histograms for the representation of multichannel NC-AFM data sets in a quantitative fashion. Presentation and analysis are exemplified for topography and contact-potential data for graphene grown epitaxially on 6H-SiC(0001), as recorded by Kelvin probe force microscopy in ultrahigh vacuum. Sample preparations by thermal decomposition in ultrahigh vacuum and in an argon atmosphere are compared and the respective growth mechanisms discussed.
doi:10.3762/bjnano.3.19
PMCID: PMC3304321  PMID: 22428109
FM-AFM; graphene; 6H-SiC(0001); KPFM; SPM

Results 1-1 (1)