Intrinsic Switching Characteristics of Ferroelectric Ultrathin Vinylidene Fluoride/Trifluoroethylene Copolymer Films Revealed Using Au Electrode

• Nakajima Takashi

  Faculty of Science, Tokyo University of Science

• Abe Ryosuke

  Faculty of Science, Tokyo University of Science

• Takahashi Yoshiyuki

  Faculty of Science, Tokyo University of Science

• Furukawa Takeo

  Faculty of Science, Tokyo University of Science

抄録

Time-domain measurements of ferroelectric polarization reversal were conducted for spin-coated ultrathin vinylidene fluoride/trifluoroethylene copolymer films deposited with an Au electrode. It was found that full polarization reversal occurs in 50–330-nm-thick films that have switching time independent of the film thickness. We conclude that the thinning-induced increase in switching time reported previously is not a general feature of this copolymer but is specific to an Al-electrode-deposited sample. The intrinsic switching characteristics revealed here include the broadening of the switching time distribution with thinning, which is attributed to the nonuniform electric field caused by surface roughness.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 44 (42-45), L1385-L1388, 2005

  The Japan Society of Applied Physics

キーワード

• ferroelectric thin film
• vinylidene fluoride/trifluoroethylene copolymer
• switching characteristics
• Au electrode
• surface roughness
• AFM

詳細情報

• CRID: 1390282681246186112
• NII論文ID: 210000059380
• NII論文ID: 10016856938
• NII書誌ID: AA11906093
• DOI: 10.1143/jjap.44.l1385
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• NDL書誌ID: 7694517
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7694517
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.L1385
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.L1385/pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可