title: Three-dimensional dynamic force spectroscopy measurements on KBr(001): atomic deformations at small tip-sample separations.
abstract: Three-dimensional dynamic force spectroscopy measurements were carried out above KBr(001) at low temperature in order to investigate the distance dependence of the tip-sample interactions. In particular, the recorded 3D frequency shift data as well as the extracted interaction force and potential energy fields were analysed with respect to influences of tip and/or sample deformations. We found that a postprocessing correction of the observed deformations significantly modifies the magnitude of the extracted interaction forces and also the image contrast.
authors.affiliation: Department of Physics, University of Basel, Klingelbergstraße 82, CH-4056 Basel, Switzerland. Sweetlana.Fremy@unibas.ch
authors.forename: S
authors.initials: S
authors.lastname: Fremy
authors.forename: S
authors.initials: S
authors.lastname: Kawai
authors.forename: R
authors.initials: R
authors.lastname: Pawlak
authors.forename: T
authors.initials: T
authors.lastname: Glatzel
authors.forename: A
authors.initials: A
authors.lastname: Baratoff
authors.forename: E
authors.initials: E
authors.lastname: Meyer