paper

Detection mechanism for ferroelectric domain boundaries with lateral force microscopy

arXiv:cond-mat/0602414 · doi:10.1063/1.2234303

Abstract

The contrast mechanism for the visualization of ferroelectric domain boundaries with lateral force microscopy is generally assumed to be caused by mechanical deformation of the sample due to the converse piezoelectric effect. We show, however, that electrostatic interactions between the charged tip and the electric fields arising from the surface polarization charges dominate the contrast mechanism. This explanation is sustained by quantitative analysis of the measured forces as well as by comparative measurements on different materials.

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