Posted by MRH on February 17, 2014, 12:12 pm
In the tight binding model, can we turn the qualitative guess that a band that is not totally occupied implies the material can conduct electricity, into a quantitative prediction?
I suppose the guess that an E field shifts the mean K comes from the drude model, where an E field causes a mean drift velocity, however, I would really like to include an E field as a perturbation, in the tight binding hamiltonian, and derive the shift in K, however it is not obvious to me how to do this. Is this approach possible?
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