Spatially resolved spectroscopic mapping of polarization reversal in polycrystalline ferroelectric films: Crossing the resolution barrier

K. Seal, S. Jesse, M. P. Nikiforov, S. V. Kalinin, I. Fujii, P. Bintachitt, S. Trolier-Mckinstry

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Abstract

The mesoscopic reversible and irreversible polarization dynamics in polycrystalline PZT thin film capacitors are studied using local spectroscopic mapping and macroscopic first-order reversal curve measurements. The transition from a regime of short range domain wall motion to the formation of mesoscopic clusters to complete switching is observed. The fractal dimension of the clusters is consistent with the random-bond disorder model. The combination of macroscopic and local measurements allows the characteristics length scales corresponding to the transition from Rayleigh to Preisach behaviors and onset of macroscopic averaging to be determined.

Original languageEnglish (US)
Article number057601
JournalPhysical Review Letters
Volume103
Issue number5
DOIs
StatePublished - Aug 6 2009

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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