Optical absorption and light-induced charge transport of Fe2+ in BaTiO3

Optical absorption and light-induced charge transport of Fe2+ in BaTiO3

Iron doped barium titanate was grown and reduced at various temperatures. Using optical absorption and electron paramagnetic resonance (photo-EPR) simultaneously, a wide absorption band at ∼2.1 eV due to Fe2+ is established. The light-induced charge transport between Fe2+/3+ and shallow Ti4+/3+−VO i...

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Bibliographic Details
Published in:Applied physics letters Vol. 70; no. 18; pp. 2395 - 2397
Main Authors: Mazur, A., Schirmer, O. F., Mendricks, S.
Format: Journal Article
Language:English
Published: 05-05-1997
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Summary:Iron doped barium titanate was grown and reduced at various temperatures. Using optical absorption and electron paramagnetic resonance (photo-EPR) simultaneously, a wide absorption band at ∼2.1 eV due to Fe2+ is established. The light-induced charge transport between Fe2+/3+ and shallow Ti4+/3+−VO is identified, showing a two-center type response at low and one-center type response at room temperature.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.118883