 ![Dose dependence of the surface density of oxide charges and the surface-current density scaled to after annealing at 00 $^{\circ}$C for 00 minutes. (a) $N_{ox}$ vs. dose. (b) $J_{surf}$ vs. dose.[]{data-label="Figure0"}](Dose_dependence_of_oxide_charge_density.eps "fig:") ![Dose dependence of the surface density of oxide charges and the surface-current density scaled to after annealing at 00 $^{\circ}$C for 00 minutes. (a) $N_{ox}$ vs. dose. (b) $J_{surf}$ vs. dose.[]{data-label="Figure0"}](Dose_dependence_of_surface_current_density.eps "fig:")  F