FE CENTERS AND CHARGE COMPENSATION IN ZNWO4 SINGLE-CRYSTALS CHARACTERIZED BY ESR AND IR SPECTROSCOPY

Autor(en): WATTERICH, A
WOHLECKE, M
MULLER, H
RAKSANYI, K
BREITKOPF, A
ZELEI, B
Stichwörter: Chemistry; Chemistry, Multidisciplinary; CRYSTAL; ESR; IR; OH; Physics; Physics, Condensed Matter; POINT DEFECTS; SCINTILLATION; VOH-CENTER; ZNWO4FE
Erscheinungsdatum: 1992
Herausgeber: PERGAMON-ELSEVIER SCIENCE LTD
Journal: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volumen: 53
Ausgabe: 7
Startseite: 889
Seitenende: 895
Zusammenfassung: 
In ZnWO4:Fe one of the numerous Fe3+ centers with reduced symmetry (C1) was identified as an Fe3+ ion compensated probably by a Zn2+ vacancy not very close to the Fe3+ ion. The lack of a proton superhyperfine interaction of the different Fe3+ complexes with C1 symmetry and the missing correlation between the absorption coefficient of the i.r. band at 3445 cm-1 and the ESR intensities of the Fe3+ complexes leads to a modified model for the i.r. active center, namely an OH- ion substituting for O2- associated with a Zn vacancy and designated as V(OH)-.
ISSN: 00223697
DOI: 10.1016/0022-3697(92)90115-T

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