Abstract
Complex effect of different contributions (spontaneously formed In nanoparticles, near-interface, surface, and bulk layers) on electrophysical properties of InN epitaxial films is studied. Transport parameters of the surface layer are determined from the Shubnikov-de Haas oscillations measured in undoped and Mg-doped InN films at magnetic fields up to 63 T. It is shown that the In nanoparticles, near-interface, and bulk layers play the dominant role in the electrical conductivity of InN, while influence of the surface layer is pronounced only in the compensated low-mobility InN:Mg films.
- Received 21 February 2011
DOI:https://doi.org/10.1103/PhysRevB.84.035205
©2011 American Physical Society