Digitale Medien
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
65 (1994), S. 1915-1917
ISSN:
1077-3118
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
In this work we apply a force modulation technique to a standard atomic force microscope (AFM) in order to study the elasticity of individual polystyrene molecules. The sample mounted on a piezoelectric tube was forced to vibrate along the z direction. The corresponding modulation of the cantilever, which reflects the spring constant of the sample, was phase sensitively detected and measured as a function of the surface topography. The image contrast in these images is based on local variations of the surface elasticity. Compared to the conventional AFM topography image, the elasticity image shows an enhanced contrast with pronounced molecular structure. © 1994 American Institue of Physics.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.113000
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