OXYGEN VACANCY RELATED DEFECTS IN BATIO(3)

Autor(en): Scharfschwerdt, R.
Schirmer, O. F.
Kroese, H.
Kool, Th. W.
Stichwörter: Materials Science; Materials Science, Multidisciplinary; Physics; Physics, Condensed Matter
Erscheinungsdatum: 1996
Herausgeber: TAYLOR & FRANCIS LTD
Journal: FERROELECTRICS
Volumen: 185
Startseite: 9
Seitenende: 12
Zusammenfassung: 
Depending on the acceptor content of BaTiO3 crystals, two types of Ti3+ ESR signals are observed. Acceptor-poor samples, which thus also have low concentrations of compensating oxygen vacancies, VO, contain isolated Ti3+ free small polarons. Acceptor-rich crystals show signals to be attributed to Ti3+ next to VO - alkali-acceptor complexes. This model is supported by a comparison of the optical absorptions and light induced charge transfer transitions of both types of specimens.
ISSN: 00150193
DOI: 10.1080/00150199608210467

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