Backgrounds of studies of ferroelectric surface carrier layer are discussed in view of domain engineering, memory applications and size effects. Experimental evidence that supports the intrinsic surface carrier layer is presented and is discussed. Especially, we show the surface conduction of BaTiO3 single crystals in ultra high vacuum. To our knowledge, we report the first demonstration of the electrically controlled formation of both electron and hole surface conduction layer that are nonvolatile.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics