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

Autor(en): Mazur, A
Schirmer, OF
Mendricks, S
Stichwörter: BARIUM-TITANATE; CRYSTALS; PARAMAGNETIC DEFECTS; Physics; Physics, Applied
Erscheinungsdatum: 1997
Herausgeber: AMER INST PHYSICS
Journal: APPLIED PHYSICS LETTERS
Volumen: 70
Ausgabe: 18
Startseite: 2395
Seitenende: 2397
Zusammenfassung: 
Iran 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 similar to 2.1 eV due to Fe2+ is established. The light-induced charge transport between Fe2+/3+ and shallow Ti4+3+-V-0 is identified, showing a two-center type response at low and one-center type response at room temperature. (C) 1997 American Institute of Physics.
ISSN: 00036951
DOI: 10.1063/1.118883

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