The optical property of multiferroic BiFeO3 films

Hiromi Shima, Hiroshi Naganuma, Takashi Iijima, Takashi Nakajima, Soichiro Okamura

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)11-16
Number of pages6
JournalIntegrated Ferroelectrics
Issue number1
Publication statusPublished - 2009
Event9th European Conference on Applications of Polar Dielectrics, ECAPD-9 - Roma, Italy
Duration: 2008 Aug 252008 Aug 29


  • Film
  • Multiferroic
  • Optical property
  • Refractive index


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