We fabricated a multiferroic BiFeO3 (BFO) film and evaluated its optical properties. A polycrystalline BFO film with a thickness of 650 nm was formed on a Pt/Ti/SiO2/Si substrate. The refractive index of the BFO film was estimated to be approximately 3.0 at a wavelength of 600 nm. This value is the largest in the visible light range for oxide films such as rutile-type TiO2. Furthermore, the extinction coefficient was estimated to be zero in the wavelength range of 600 to 1670 nm. These results suggest that the produced BFO film is a promising material for optical communication devices.
|Number of pages||6|
|Publication status||Published - 2009|
|Event||9th European Conference on Applications of Polar Dielectrics, ECAPD-9 - Roma, Italy|
Duration: 2008 Aug 25 → 2008 Aug 29
- Optical property
- Refractive index