Orientational Ordering of Polymers by Atomic Force Microscope Tip-Surface Interaction

Science  03 Jan 1992:
Vol. 255, Issue 5040, pp. 64-66
DOI: 10.1126/science.255.5040.64


Results of studies on the interaction between the tip of an atomic force microscope and polystyrene molecules in a film spread on a surface are reported. The tip produces a persistent deformation on the film; some of the polymer molecules are eventually pulled up by the tip. Nanometer-size structures are induced, resulting in a pattern that is periodic and is oriented perpendicular to the scan direction.