Novel electrical conduction of insulators under examination of defects and injection and relationship to theories of ferroelectric domains

Y. Watanabe, Y. Urakami, D. Matsumoto, S. Kaku, S. W. Cheong, G. A. Thomas, S. Miyauchi

研究成果: ジャーナルへの寄稿会議記事査読

抄録

Electrical conductions in insulators such as resistance switching, conduction at interfaces, and conduction at domain boundaries and free surface of ferroelectrics are of interest. These conductions are often attributed to novel mechanism such as ferroelectric polarization. On the other hand, these interpretations appear not fully accepted, because the recent advanced theories of ferroelectric domains disregard screening indicated by these conduction phenomena. That is, these conduction phenomena are quietly regarded as the classical conduction originating from defects. In this paper, we examine these conductions in pure wide bandgap insulators in view of defects, using the direct-accessibility (tangibility) of conduction at free surfaces. Although most of these conductions in ferroelectrics may not be useful in large-scale applications, we show that they have fundamental implications on renovations of ferroelectric basics.

本文言語英語
ジャーナルMaterials Research Society Symposium Proceedings
1674
DOI
出版ステータス出版済み - 2014
イベント2014 MRS Spring Meeting - San Francisco, 米国
継続期間: 4月 21 20144月 25 2014

!!!All Science Journal Classification (ASJC) codes

  • 材料科学一般
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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