Host material induced hyperfine structure of F + centres EPR spectra in CaS
| Autor: | Aarne Maaroos, V. Seeman, S. Dolgov |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Spin hamiltonian Quantum Physics 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Spectral line 0104 chemical sciences Electronic Optical and Magnetic Materials Magnetic field law.invention Host material medicine.anatomical_structure Nuclear magnetic resonance law Quadrupole medicine Physics::Atomic Physics Electrical and Electronic Engineering 0210 nano-technology Electron paramagnetic resonance Nucleus Hyperfine structure |
| Zdroj: | Physica B: Condensed Matter. 513:69-71 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/j.physb.2017.03.010 |
| Popis: | The hyperfine structure (HFS) of F + centres in CaS single crystals due to the interaction with 33 S and 43 Ca nuclei was observed in EPR spectra for the first time. Angular variations of the HFS were measured for rotation of magnetic field in {100} and {110} crystallographic planes. Using measured orientation-dependent EPR spectra and the EPR NMR program, the parameters of the spin Hamiltonian were determined. In case of 33 S nucleus there is a strong dependence of the F + centre EPR spectrum on the quadrupole term whereas for 43 Ca nucleus this dependence is insignificant. |
| Databáze: | OpenAIRE |
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