Producing nanodot arrays with improved hexagonal order by patterning surfaces before ion sputtering
Producing nanodot arrays with improved hexagonal order by patterning surfaces before ion sputtering
When the surface of a nominally flat binary material is bombarded with a broad, normally incident ion beam, disordered hexagonal arrays of nanodots can form. Shipman and Bradley have derived equations of motion that govern the coupled dynamics of the height and composition of such a surface [Shipman and Bradley, …