Paramagnetic defects in ZnWO4 single crystals induced by electron irradiation at room temperature
| Autor: | O.R. Gilliam, A. Watterich, Gábor Corradi, B. Vajna, Ágnes Péter, L.A. Kappers, G.J. Edwards |
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| Rok vydání: | 1994 |
| Předmět: |
Landé g-factor
chemistry.chemical_element General Chemistry Zinc Condensed Matter Physics Molecular physics Ion Condensed Matter::Materials Science Paramagnetism Single electron chemistry.chemical_compound Nuclear magnetic resonance chemistry Tungstate Vacancy defect Physics::Atomic and Molecular Clusters Electron beam processing Condensed Matter::Strongly Correlated Electrons General Materials Science |
| Zdroj: | Journal of Physics and Chemistry of Solids. 55:881-887 |
| ISSN: | 0022-3697 |
| DOI: | 10.1016/0022-3697(94)90012-4 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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