(a) Ψ and (b) Δ spectra of the LAO samples with different mole concentrations, obtained at a 60° angle of incidence. The spectra of (a) and (b) are offset by increments of 50 and 100, respectively, relative to the bottom spectra.
Ellipsometric parameters (a) Ψ and (b) Δ of the 0.09 M LAO film (open dots), together with best-fit curves (solid lines) calculated using the multilayer model.
Dependence of the film thicknesses and TL band gaps upon mole concentration.
(a) Real and (b) imaginary parts of the dielectric functions of the LAO films obtained from the data. The spectrum of bulk LaAlO3 is taken from Ref. 9 .
Properties of the samples.
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