Abstract
Mössbauer spectra of amorphous LiNbO3 doped with57Fe2+ ions were measured atT≥4.2 K in external magnetic fields up toH=5.5 T. It was found that the oxygen octahedra around the high-spin Fe2+ ions are randomly distorted obeying no symmetry at all. The correlation of isomer shift and quadrupole splitting is probably due to T2g distortions.
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Dengler, H., Leupold, O., Nagy, D.L. et al. Distribution of hyperfine fields of57Fe2+ in amorphous LiNbO3: Mössbauer study at low temperatures in high magnetic fields. Hyperfine Interact 69, 667–671 (1992). https://doi.org/10.1007/BF02401915
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DOI: https://doi.org/10.1007/BF02401915