Paramagnetic defects in ZnWO4 single crystals induced by electron irradiation at room temperature

A. Watterich, G. J. Edwards, O. R. Gilliam, L. A. Kappers, G. Corradi, Á Péter, B. Vajna

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Abstract

Intrinsic paramagnetic defects in undoped zinc tungstate single crystals have been observed by ESR after electron irradiation at room temperature. The only observed hole-type defect is attributed to a hole trapped at an O2- ion near a zinc vacancy. Two electron-excess centers are each due to a single electron trapped at an oxygen vacancy, where the defects differ in the oxygen vacancy positions. All of the defects exhibit superhyperfine interactions with neighboring 183W nuclei. Spin-Hamiltonian parameters are reported and discussed.

Original languageEnglish
Pages (from-to)881-887
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume55
Issue number9
DOIs
Publication statusPublished - Sep 1994

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Keywords

  • A. optical materials
  • D. defects
  • D. electron paramagnetic resonance (EPR)
  • D. radiation damage

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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