ESR hyperfine investigation of the V0centre in MgO
| Autor: | L E Halliburton, B H Rose |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Materials science
Magnesium Isotropy General Engineering Spin system General Physics and Astronomy chemistry.chemical_element Condensed Matter Physics Condensed Matter::Materials Science chemistry Vacancy defect Quadrupole Physics::Atomic and Molecular Clusters Physics::Atomic Physics Atomic physics Anisotropy Hyperfine structure |
| Zdroj: | Journal of Physics C: Solid State Physics. 7:3981-3987 |
| ISSN: | 0022-3719 |
| DOI: | 10.1088/0022-3719/7/21/018 |
| Popis: | The V0 centre in magnesium oxide consists of two holes trapped by a magnesium vacancy. The hyperfine spectrum due to interactions between this S=1 spin system and two equivalent neighbouring 25Mg axial nuclei has been observed and values for the isotropic and anisotropic hyperfine parameters and the nuclear quadrupole parameter are presented. This provides further verification of the ground-state model in which the two holes are localized on opposite sides of the magnesium vacancy. The existence of a 'negative' transferred contact interaction with the axial neighbour nuclei has been conclusively shown. Hyperfine lines from the equatorial magnesium neighbours are observed but not analysed in detail. |
| Databáze: | OpenAIRE |
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