Identification of the main contributions to the conductivity of epitaxial InN


Identification of the main contributions to the conductivity of epitaxial InN

Komissarova, T. A.; Jmerik, V. N.; Ivanov, S. V.; Drachenko, O.; Wang, X.; Yoshikawa, A.

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.

Keywords: InN; Shubnikov-de Haas; magneto-transport

Permalink: https://www.hzdr.de/publications/Publ-15919
Publ.-Id: 15919