Abstract

High-resolution transmission electron microscopy (TEM) shows that MgO films, grown on (001) GaAs by magnetron sputtering, are single crystal with a cube-on-cube relationship with the substrate, even though they are separated from the substrate by an amorphous interlayer. Scanning TEM–energy dispersive x-ray and scanning TEM–electron energy loss spectroscopy analysis of the interlayer shows that it consists of the native oxide of GaAs as well as nanocrystalline MgO. It is proposed that epitaxial MgO nucleated at pin holes produced by volatilization of the native oxide.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call