Optical Properties of BiFeO3-System Multiferroic Thin Films

@article{Shima2009OpticalPO,
  title={Optical Properties of BiFeO3-System Multiferroic Thin Films},
  author={Hiromi Shima and Takeshi Kawae and Akiharu Morimoto and Masahiro Matsuda and Michio Suzuki and Toshiyasu Tadokoro and Hiroshi Naganuma and Takashi Iijima and Takashi Nakajima and Soichiro Okamura},
  journal={Japanese Journal of Applied Physics},
  year={2009},
  volume={48},
  pages={09KB01}
}
The optical properties of the chemical solution deposition (CSD)-derived BiFeO3 (BFO) film and the pulsed laser deposition (PLD)-derived (Bi,Nd)(Fe,Mn)O3 (BNFM) film were evaluated by spectroscopic ellipsometry, and their optical constants (n, k) and band gaps were determined. At a wavelength of 600 nm, the refractive indexes of 3.22 and 2.87 were estimated for the BFO and BNFM films, respectively, although the existence of a refractive index gradient was suggested in the BFO film. In addition… 
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TLDR
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TLDR
It is argued that epitaxial strain does not enhance the magnetization and polarization in BiFeO3 and suggests the potential for novel devices that exploit the anticipated strain-mediated magnetoelectric coupling between the two ordered ground states.
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