The carrier mobility and the spin exchange between carriers and localized magnetic Mn impurities are studied in p-type PbTe: Mn alloys. Using helicon propagation, the mobility measurements lead to a value for the total manganese impurity cross section σscatt=5×10^-16 cm². The linewidth of the Mn electron spin resonance is studied as a function of temperature, number of carriers, and manganese concentration. The carrier-dependent linewidth is explained in terms of a Korringa mechanism. From this analysis, the exchange constant $J=0.07$ eV is deduced. From this value of J, the spin-flip scattering cross section σsf=4×10^-19 cm² is calculated.
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Tóth et al. (1970) studied this question.
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