Abstract
AbstractESR spectra and emission and excitation spectra of the MgS:Mn2+ phosphor are measured at 6, 80, and 300 K. From ESR spectra the values of the parameters g and A are obtained: g = 2.0019 and A = −74.8 × 10−4 cm−1 at 300 K. Furthermore, the analysis of the excitation spectra leads to the values B = 631 cm−1, C = 3345 cm−1, and Dq = 817 cm−1 with covalency parameter ϵ = 0.044. The value of the cubic field parameter a estimated from the shape of ESR spectra is much smaller than that theoretically deduced from the observed value of the parameter Dq.
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