Electronic structure of bivalent copper off-center complexes in SrF2 crystals from data of EPR and ENDOR spectroscopy
| Autor: | M. M. Zaripov, I. I. Fazlizhanov, V. A. Ulanov, O. A. Anikeenok |
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| Rok vydání: | 2003 |
| Předmět: |
Electron nuclear double resonance
Materials science chemistry.chemical_element Electronic structure Condensed Matter Physics Copper Electronic Optical and Magnetic Materials Ion law.invention Condensed Matter::Materials Science Electron transfer Crystallography chemistry law Condensed Matter::Superconductivity Electron configuration Atomic physics Spectroscopy Electron paramagnetic resonance |
| Zdroj: | Physics of the Solid State. 45:1906-1909 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/1.1620093 |
| Popis: | The electronic structure of bivalent copper off-center complexes in SrF2 crystals is calculated from experimental data obtained earlier by electron paramagnetic resonance (EPR) and electron-nuclear double resonance (ENDOR) spectroscopy. The electronic structure parameters characterizing the unpaired-electron density in the vicinity of the nucleus of a copper impurity ion are determined, and the parameters of covalent bonds between an impurity copper ion and three groups of the fluorine ions nearest to this impurity are calculated. It is demonstrated that states of the ground electron configuration of the bivalent copper impurity complex involve an admixture of excited electron configurations due to electron transfer from the ligand to 4s and 4p unfilled shells of the copper ion. |
| Databáze: | OpenAIRE |
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