Carregant...
Carregant...

Vés al contingut (premeu Retorn)

Unlocking higher harmonics in atomic force microscopy with gentle interactions

Autor
Santos, S.; Barcons, V.; Font, J.; Verdaguer, A.
Tipus d'activitat
Article en revista
Revista
Beilstein Journal of Nanotechnology
Data de publicació
2014-03-11
Volum
5
Pàgina inicial
268
Pàgina final
277
DOI
10.3762/bjnano.5.29
Repositori
http://hdl.handle.net/2117/22859 Obrir en finestra nova
Resum
In dynamic atomic force microscopy, nanoscale properties are encoded in the higher harmonics. Nevertheless, when gentle interactions and minimal invasiveness are required, these harmonics are typically undetectable. Here, we propose to externally drive an arbitrary number of exact higher harmonics above the noise level. In this way, multiple contrast channels that are sensitive to compositional variations are made accessible. Numerical integration of the equation of motion shows that the externa...
Citació
Santos, S. [et al.]. Unlocking higher harmonics in atomic force microscopy with gentle interactions. "Beilstein Journal of Nanotechnology", 11 Març 2014, vol. 5, p. 268-277.
Paraules clau
AFM, Atomic force microscopy, Cells, Chemistry, Composition, Heterogeneity, Higher harmonics, Liquid, Live, Mode, Molecular resolution, Phase, Sosft matter
Grup de recerca
CIRCUIT - Grup de Recerca en Circuits i Sistemes de Comunicació
PERC-UPC - Centre de Recerca d'Electrònica de Potència UPC
SSR-UPC - Smart Sustainable Resources

Participants

Arxius