Elektronenspin-Resonanz von Stickstoffzentren in Alkalihalogenid-Kristallen |
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Authors: | A. Hausmann R. Hilsch W. Sander |
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Affiliation: | 1. I. Physikalischen Institut der Universit?t G?ttingen, FRG
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Abstract: | Paramagnetic nitrogen centers are produced in nitrate doped single crystals of KCl, KBr, KJ, and NaCl by introduction of F-centers. The electron spin resonance is studied at low temperature. The hyperfine structure of the lines is caused by interaction with two N14 nuclei. The angle dependence of the resonance spectra is measured by rotating the crystals about several crystallographic axes. The results can be fitted to a spin-Hamiltonian with orthorhombic symmetry. The components of theg-tensor and theA-tensor are determined. The centers are believed to be N 2 ? -ions in negative ion vacancies. |
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