Аннотация:
Kinetic characteristics under irradiation by electrons (with energies from 0.5 to 15 keV and a current density 10-5 - 10-7 A/sm2) for the initial surface and for the surface after ion bombardment of sapphire single crystal has been studied. It was found that the time-depending and the charge characteristics for initial and for irradiated by Ar+ ions sapphire surface differ in magnitude by almost two orders. The interpretation of the observed effect has been proposed.