Dependence of Columnar Structure on Film Thickness in Iron Film Evaporated at Oblique Incidence

Abstract

The columnar structure in iron film is analyzed by the magnetic measurements. Irrespective of the stage of the formation of films, the columnar grains elongate toward the vapor beam direction and align densely along the perpendicular to the incidence plane, but at the initial stage the amount of the gaps between the columnar grains are considerably smaller than at the final stage.