Detection mechanism for ferroelectric domain boundaries with lateral force microscopy

Details Detection mechanism for ferroelectric domain boundaries with lateral force microscopy Detection mechanism for ferroelectric domain boundaries with lateral force microscopy

2006-02-17

arxiv.org/abs/cond-mat/0602414v1

Appl. Phys. Lett. 89, 042901 (2006)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1063/1.2234303

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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