Pk. Schelling et al., SELF-CONSISTENT TIGHT-BINDING ATOMIC-RELAXATION MODEL OF TITANIUM-DIOXIDE, Physical review. B, Condensed matter, 58(3), 1998, pp. 1279-1293
We report a self-consistent tight-binding atomic-relaxation model for
titanium dioxide. We fit the parameters of the model to first-principl
es electronic structure calculations of the band structure and energy
as a function of lattice parameters in bulk rutile. We report the meth
od and results for the surface structures and energies of relaxed (110
), (100), and (001) surfaces of rutile TiO2 as well as work functions
for these surfaces. Good agreement with first-principles calculations
and experiments, where available, is found for these surfaces. We find
significant charge transfer (increased covalency) at the surfaces. [S
0163-1829(98)03527-9].