We have studied the EPR of Mn2+ ions in three samples of cubic nano-ZnS made by different technologies and having different nanoparticle sizes. Manganese occurs in the samples as an uncontrolled impurity. The EPR spectra can be described by two components: the spectrum of the Mn2+ in a cubic environment (Mn2+(C)) with parameters g = 2.0022 ± 0.0002, A = (–63.5 ± 0.5)·10–4 cm–1, 0 b4 ≥ 3.5·10–4 cm–1; and the spectrum of the Mn2+ ion associated with a planar lattice stacking fault (Mn2+ (F)), with parameters g = 2.0022 ± 0.0002, A = (–63.5 ± 0.5)·10–4 cm–1, \( {b}_2^0 \) = (–36 ± 1)·10–4 cm–1. The ratio of the number of centers Mn2+(C)/Mn2+(F) is 2.1:1 for sample 1 and 1.7:1 for samples 2 and 3. Planar stacking faults are typical lattice faults for cubic nano-ZnS. EPR of the Mn2+ ions lets us monitor the presence of these ions.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 86, No. 1, pp. 146–150, January–February, 2019.
N. P. Baran is deceased
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Vorona, I.P., Ishchenko, S.S., Grachev, V.G. et al. Electron Paramagnetic Resonance of Mn2+ Ions in Nanosized Zinc Sulfide with a Planar Lattice Fault. J Appl Spectrosc 86, 130–133 (2019). https://doi.org/10.1007/s10812-019-00792-7
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DOI: https://doi.org/10.1007/s10812-019-00792-7