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

Fingerprint

Heterojunctions
conductors
insulators
Thin films
thin films
conductivity
Substrates
Curie temperature
Ferroelectric materials
Polarization
conduction
polarization
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Conductor-insulator transition-like phenomenon in thin BaTiO3 film heterostructures. / Kaku, Shigeru; Miyauchi, Satoshi; Arai, Take; Watanabe, Yukio.

In: Ferroelectrics, Vol. 370, No. 1 PART 4, 01.12.2008, p. 39-45.

Research output: Contribution to journalConference article

Kaku, Shigeru ; Miyauchi, Satoshi ; Arai, Take ; Watanabe, Yukio. / Conductor-insulator transition-like phenomenon in thin BaTiO3 film heterostructures. In: Ferroelectrics. 2008 ; Vol. 370, No. 1 PART 4. pp. 39-45.
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