Tight-Binding parameters for Carbon-Silicon compounds


Carbon (C)
Atomic Number 6
Atomic Weight 12.0107
Room Temperature Structure graphite (A9)
Experimental Lattice Constant a = 2.456 Å
c = 6.696 Å
 
Silicon (Si)
Atomic Number 14
Atomic Weight 28.0855
Room Temperature Structure diamond (A4)
Experimental Lattice Constant a = 5.43 Å

We have developed two sets of parameters for C-Si compounds. The first is optimized to reproduce structural energies of the diamond and zincblende phases:

C-Si parameters (csi_par)

The second is optimized to reproduce the behavior of the electronic structure above the gap:

C-Si parameters (csi_b_par)


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