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.
|発行部数||1 PART 4|
|出版物ステータス||出版済み - 12 1 2008|
|イベント||11th European Meeting on Ferroelectricity, EMF-2007 - Bled, スロベニア|
継続期間: 9 3 2007 → 9 7 2007
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics