Nb-doped ZnWO4 single crystals characterized by ESR and IR spectroscopy

A. Watterich, G. J. Edwards, O. R. Gillian, L. A. Kappers, R. Capelletti, B. Zelei

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Abstract

Four different Nb4+ centers in niobium-doped zinc tungstate single crystals have been observed by ESR after thermal reduction or electron irradiation. These centers, which are electron-like, exhibit C1 symmetry rather than the C2 symmetry of the cation lattice sites. The reduction in symmetry is attributed to charge-compensating C and OH containing complexes near the Nb4+ ions. Electron irradiation also produces some hole-like Nb defects.

Original languageEnglish
Pages (from-to)477-482
Number of pages6
JournalPhysics Letters A
Volume160
Issue number5
DOIs
Publication statusPublished - Dec 2 1991

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Watterich, A., Edwards, G. J., Gillian, O. R., Kappers, L. A., Capelletti, R., & Zelei, B. (1991). Nb-doped ZnWO4 single crystals characterized by ESR and IR spectroscopy. Physics Letters A, 160(5), 477-482. https://doi.org/10.1016/0375-9601(91)90251-3