Observation of antiparallel polarization reversal using a scanning nonlinear dielectric microscope

Takeshi Morita, Yasuo Cho

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

To realize an ultrahigh density storage system it is indispensable to investigate a forming mechanism of a ferroelectric domain reversal. In this paper, a real-time measuring method of a poling direction is proposed. Using this method, the domain reversal process was observed and an unexpected phenomenon was found, namely, that the poling directions were aligned antiparallel to the poling electric field. This antiparallel poling reversal took place when the film thickness was more than 350 nm in the case of lithium tantalate. At present, the reason and mechanism of the antiparallel poling reversal are uncertain, although it might be related to the concentrated electric field near the cantilever tip.

Original languageEnglish
Pages (from-to)6214-6217
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume42
Issue number9 B
DOIs
Publication statusPublished - 2003 Sep

Keywords

  • Antiparallel poling reversal
  • Data storage
  • Ferroelectric thin film
  • Nanodot
  • Scanning nonlinear dielectric microscope

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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