A LEED study of MgO(100). I. Experiment

Normalized LEED intensity-voltage data have been obtained for the (100) surface of MgO prepared by cleavage in-situ. Corrections for the variation of primary current with energy and for varying optical attenuation of the grids as beams move across the screen have both been applied. Variations in surface potential with primary energy have been estimated using the position of the L 2.3 VV peak in the Auger spectrum. Data are given for four beams at normal incidence, the specular beam in two azimuths and at angles of incidence of 5, 10, 15 and 20 degrees and the (10) beams at one azimuth and the same angles of incidence.