Impurity Sn-related paramagnetic defects in UV-illuminated ZnWO4 single crystals

A. Watterich, L. A. Kappers, O. R. Gilliam

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Electron spin resonance methods are used to characterize a new Sn-impurity-perturbed W5+ centre with C1 symmetry produced in ZnWO4 single crystals illuminated at 77 K with 365 nm UV light. The new centre is electron-like with its highest spin density at a W site, but also with a substantial spin density at an Sn impurity substituting for a neighbouring Zn cation. It is denoted as a W5+-SnZn4+ centre. The concentration of this defect is estimated to be less than 1 μmol mol-1.

Original languageEnglish
Pages (from-to)1333-1340
Number of pages8
JournalJournal of Physics Condensed Matter
Issue number5
Publication statusPublished - Dec 1 1999


ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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