Influence of light intensity and crystal temperature on photorefractive charge-compensation processes in Al-doped Bi12TiO20 crystals

Autor(en): Donnermeyer, A
Kratzig, E
Stichwörter: BI12SIO20 CRYSTALS; GRATINGS; Materials Science; Materials Science, Multidisciplinary; Physics; Physics, Applied; Physics, Condensed Matter
Erscheinungsdatum: 2004
Herausgeber: WILEY-V C H VERLAG GMBH
Journal: PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
Volumen: 201
Ausgabe: 3
Startseite: R9-R11
Zusammenfassung: 
Photorefractive charge-compensation processes in bismuth-titanium-oxide crystals (Bi12TiO20) doped with Al are examined by holographic experiments. Our results clearly indicate that the compensating positive charges are thermally excited while the excitation of electrons is optically induced.
ISSN: 00318965
DOI: 10.1002/pssa.200309024

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