Based on the x-ray photoelectron spectra experimental results of tellurides reported in the literature, it is found that in tellurides, in addition to $\mathrm{T}{\mathrm{e}}^{2-}$ ($5s^{2}5p^6$) anions, there are also $\mathrm{T}{\mathrm{e}}^{1-}$ ($5s^{2}5p^5$) anions. The average chemical valences of Te and cations in ${\mathrm{Cr}}_3{\mathrm{Te}}_4$, ${\mathrm{Cr}}_5{\mathrm{Te}}_8$, and ${\mathrm{FeCr}}_2{\mathrm{Te}}_4$ single-crystal materials are then estimated. Using these average chemical valences and an O $2p$ itinerant electron model for magnetic oxides, the magnetic ordering mechanism of these three telluride samples is discussed. At the same time, for these single-crystal magnetic materials subjected to a magnetic field along the easy magnetization direction, the effect of magnetic domain wall movement on the magnetization is taken into account.

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• Magnetic coupling
• Magnetic interactions
• Magnetism
• Micromagnetism