PARAMAGNETIC DEFECTS IN BATIO3 AND THEIR ROLE IN LIGHT-INDUCED CHARGE TRANSPORT .1. ESR STUDIES

Autor(en): POSSENRIEDE, E
JACOBS, P
SCHIRMER, OF
Stichwörter: ACCEPTOR; HOLES; IMPURITIES; KNBO3; PHOTOCONDUCTIVITY; PHOTOREFRACTIVE BARIUM-TITANATE; Physics; Physics, Condensed Matter; RESONANCE
Erscheinungsdatum: 1992
Herausgeber: IOP PUBLISHING LTD
Journal: JOURNAL OF PHYSICS-CONDENSED MATTER
Volumen: 4
Ausgabe: 19
Startseite: 4719
Seitenende: 4742
Zusammenfassung: 
An overview on paramagnetic defects in BaTiO3 single crystals, used in photorefractive applications, is given. New results concerning cation defects include the investigation of double quantum transitions in isolated Fe3+, identification of the parameters of Fe4+-V0, analysis of Co2+, the report of Co4+-V0, Jahn-Teller-induced spin-lattice relaxation effects of Pt3+, identification of Rh2+, Rh4+, Ir4+ and Pt5+. In the field of anion defects O- trapped hole centres associated with unknown acceptors and with Al3+ are reported. The role of the identified defects in light-induced charge transport processes is discussed.
ISSN: 09538984
DOI: 10.1088/0953-8984/4/19/013

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