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The temperature scales of screening of local magnetic and orbital moments areimportant characteristics of strongly correlated substances. In a recent paperX. Deng et al. using dynamic mean-field theory (DMFT) have identifiedtemperature scales of the onset of screening in orbital and spin channels insome correlated metals from the deviation of temperature dependence of localsusceptibility from the Curie law. We argue that the scales obtained this wayare in fact much larger, than the corresponding Kondo temperatures, and,therefore, do not characterize the screening process. By reanalyzing theresults of this paper we find the characteristic (Kondo) temperatures forscreening in the spin channel $T_K\approx 100$ K for V$_2$O$_3$ and $T_K\approx350$ K for Sr$_2$RuO$_4$, which are almost an order of magnitude smaller thanthose for the onset of the screening estimated in the paper ($1000$ K and$2300$ K, respectively); for V$_2$O$_3$ the obtained temperature scale $T_K$ istherefore comparable to the temperature of completion of the screening, $T^{\rmcomp}\sim 25$ K, which shows that the screening in this material can bedescribed in terms of a single temperature scale.

Extracting Kondo temperature of strongly-correlated systems from the inverse local magnetic susceptibility