Identification of main contributions to conductivity of epitaxial InN

Details Identification of main contributions to conductivity of epitaxial InN Identification of main contributions to conductivity of epitaxial InN

2011-05-26

arxiv.org/abs/1105.5241v1

Physics

Condensed Matter

Materials Science

Scientific paper

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.

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