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Scientific article
Letter
Open access
English

Tuning of the Depolarization Field and Nanodomain Structure in Ferroelectric Thin Films

Published inNano letters, vol. 14, no. 8, p. 4205-4211
Publication date2014
Abstract

The screening efficiency of a metal−ferroelectric interface plays a critical role in determining the polarization stability and hence the functional properties of ferroelectric thin films. Imperfect screening leads to strong depolarization fields that reduce the spontaneous polarization or drive the formation of ferroelectric domains. We demonstrate that by modifying the screening at the metal−ferroelectric interface through insertion of ultrathin dielectric spacers, the strength of the depolarization field can be tuned and thus used to control the formation of nanoscale domains. Using piezoresponse force microscopy, we follow the evolution of the domain configurations as well as polarization stability as a function of depolarization field strength.

Keywords
  • Ferroelectric thin films
  • Depolarization field
  • Polarization stability
  • Ferroelectric domains
  • PFM studies
Research group
Citation (ISO format)
LICHTENSTEIGER, Céline et al. Tuning of the Depolarization Field and Nanodomain Structure in Ferroelectric Thin Films. In: Nano letters, 2014, vol. 14, n° 8, p. 4205–4211. doi: 10.1021/nl404734z
Main files (2)
Article (Published version)
accessLevelRestricted
Article (Accepted version)
accessLevelPublic
Identifiers
ISSN of the journal1530-6984
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Technical informations

Creation09/05/2014 11:16:00 AM
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