Electron Paramagnetic Resonance of Manganese (II) in Hexagonal Zinc Oxide and Cadmium Sulfide Single Crystals

Abstract

The electron paramagnetic resonance of ${\mathrm{Mn}}^{++}$ in hexagonal ZnO and CdS single crystals has been observed. The values of the crystal field parameters were obtained from the spectra and the signs of the parameters were determined from the temperature dependence of the intensities of the peaks. In addition to the expected thirty resonances for ${\mathrm{Mn}}^{++}$ in CdS, superhyperfine splittings of each peak were observed which result from an interaction of the ${\mathrm{Mn}}^{++}$ electrons with the nearest neighbor cadmium nuclei.