Conductor-insulator transition-like phenomenon in thin BaTiO3 film heterostructures

Shigeru Kaku, Satoshi Miyauchi, Take Arai, Yukio Watanabe

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

The thin films are generally under stress from the substrate. Therefore, we relaxed the stress from a substrate and created almost stress free state. We have investigated the conduction characteristic of such BaTiO3 thin films. We have found the phenomenon in which the conductivity changes rapidly when temperature was changed, and the PTCR like effect that the conductivity decreased near curie temperature. As ferroelectrics are a class of insulators that possesses spontaneous polarization, we regard these phenomena as a new conductor-insulator transition.

Original languageEnglish
Pages (from-to)39-45
Number of pages7
JournalFerroelectrics
Volume370
Issue number1 PART 4
DOIs
Publication statusPublished - Dec 1 2008
Event11th European Meeting on Ferroelectricity, EMF-2007 - Bled, Slovenia
Duration: Sep 3 2007Sep 7 2007

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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