Abstract
Optical properties of epitaxial BiFeO3 thin films grown via pulsed-laser deposition on (110) DyScO3 substrates have been investigated. Their near-normal spectroscopic reflectivity was measured in the spectral range 2 to 14 eV at room temperature, while spectroscopic ellipsometry in the spectral range 1–6 eV was measured in the temperature range from 300 to 775 K. The optical response functions have been calculated and a direct optical gap was determined varying from 2.75 to 2.70 eV in this temperature range.
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Železný, V., Chvostová, D., Pajasová, L. et al. Optical properties of epitaxial BiFeO3 thin films. Appl. Phys. A 100, 1217–1220 (2010). https://doi.org/10.1007/s00339-010-5881-z
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DOI: https://doi.org/10.1007/s00339-010-5881-z