Energy band, unhybridized

And the poles of the potential function define the different branches of the unhybridized energy bands... 

The unhybridization energy bands are therefore obtained by placing them on the energy scale with C, and scaling the structure constants, in which the A -dependence is contained, with the band mass, /t, and distorting them with y,. 

Much insight in the transition metal band structure is provided by the LMTO method (Andersen 1975, Andersen and Jepsen 1977, Andersen et al. 1985, Skriver 1983a), which gives a very useful approximate description of narrow transition-metal bands when they hybridize little with s and p bands. The unhybridized energy band eigenvalues given by eq. (22) become particularly simple when y, is small. Then... 

Fig. 6. Schematic partial density of states scheme for an NaCl-type (binary) compound (with UN as an example) with f electrons delocalized and unhybridized. Uranium is on the left and nitrogen on the right. In ascending order nitrogen valence band f-band tied to the Fermi level the d conduction band. The Fermi level is at zero on the energy scale. The unhybridized band centres, Qi, are shown on the right. This unhybridized model corresponds to the fully ionic model...

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