Non-kolmogorov?avrami?ishibashi switching dynamics in nanoscale ferroelectric capacitors

Yunseok Kim, Hee Han, Woo Lee, Sunggi Baik, Dietrich Hesse, Marin Alexe

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

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.

Original languageEnglish
Pages (from-to)1266-1270
Number of pages5
JournalNano Letters
Volume10
Issue number4
DOIs
StatePublished - 14 Apr 2010
Externally publishedYes

Keywords

  • Ferroelectrics
  • Nanoscale capacitor
  • PFM
  • Switching dynamics

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