Observation of Antiparallel Polarization Reversal Using a Scanning Nonlinear Dielectric Microscope

• Morita Takeshi

  Research Institute of Electrical Communication, Tohoku University

• Cho Yasuo

  Research Institute of Electrical Communication, Tohoku University

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.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 42 (9B), 6214-6217, 2003

  The Japan Society of Applied Physics

Keywords

• scanning nonlinear dielectric microscope
• ferroelectric thin film
• data storage
• nanodot
• antiparallel poling reversal

Details

• CRID: 1390282681242347136
• NII Article ID: 130004531313
• NII Article ID: 10011768068
• NII Article ID: 210000054248
• NII Book ID: AA10457675
• DOI: 10.1143/jjap.42.6214
• ISSN: 13474065
• ISSN: 00214922
• NDL BIB ID: 6706310
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6706310
• Web Site: http://stacks.iop.org/1347-4065/42/i=9S/a=6214/pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed