- #1
mesogen
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I hope someone out there can help me with this fairly simple but specific question about the Mott 3-D variable range hopping conduction model.
Mott theory has the energy difference between hopping sites as:
ΔE ≈ 1 / g0rD
Where g0 density of states near the Fermi surface, D is the dimension of hopping (1,2,3) and r is the distance between hopping sites.
My question is about using this numerically. I don't know how to calculate or look up a specific number for g0 for a particular material. Also, what are the units of this quantity usually? States/volume? Energy/volume? The second makes sense because the units work out for 3D, but is that the usual unit of density of states?
Mott theory has the energy difference between hopping sites as:
ΔE ≈ 1 / g0rD
Where g0 density of states near the Fermi surface, D is the dimension of hopping (1,2,3) and r is the distance between hopping sites.
My question is about using this numerically. I don't know how to calculate or look up a specific number for g0 for a particular material. Also, what are the units of this quantity usually? States/volume? Energy/volume? The second makes sense because the units work out for 3D, but is that the usual unit of density of states?