A few things can be deduced from Fig. 5. Firstly, 0~
is as effective as 00, especially at lower thicknesses
(0~ = 40% of 0). Secondly, the effect of 0g is considerable
and cannot be neglected at lower thicknesses (0g = 15%
of 0). Thirdly, the background scattering dominates the
film resistivity in the higher thickness range.