title: Non-Kolmogorov-Avrami-Ishibashi switching dynamics in nanoscale ferroelectric capacitors.
abstract: Switching dynamics of nanoscale ferroelectric capacitors with a radius of 35 nm were investigated using piezoresponse force microscopy. Polarization switching starts with only one nucleation event occurring only at the predetermined places. The switching dynamics of nanoscale capacitors did not follow the classical Kolmogorov-Avrami-Ishibashi model. On the basis of the consideration of two separate (nucleation and growth) steps within a nonstatistical finite system, we have proposed a model which is in good agreement with the experimental results.
authors.affiliation: Max Planck Institute of Microstructure Physics, Halle (Saale), Germany. ykim@mpi-halle.mpg.de
authors.forename: Yunseok
authors.initials: Y
authors.lastname: Kim
authors.forename: Hee
authors.initials: H
authors.lastname: Han
authors.forename: Woo
authors.initials: W
authors.lastname: Lee
authors.forename: Sunggi
authors.initials: S
authors.lastname: Baik
authors.forename: Dietrich
authors.initials: D
authors.lastname: Hesse
authors.forename: Marin
authors.initials: M
authors.lastname: Alexe
mesh_terms: D003198:Computer Simulation; D018625:Microscopy, Atomic Force; D008956:Models, Chemical; D036103:Nanotechnology / Q000295:instrumentation*