Morphology and optical properties of MgO thin films on Mo(0Â 0Â 1)

Thin MgO films have been grown on Mo(0 0 1) and studied by means of STM, LEED and local photon emission spectroscopy, performed by injecting electrons from the STM tip into the sample surface. The paper provides an overview over the MgO morphology and optical characteristics as a function of film thickness.