Optical hall effect in hexagonal InN
2008 (English)In: Journal of Electronic Materials, ISSN 0361-5235, Vol. 37, no 5, 611-615 p.Article in journal (Refereed) Published
Measurements of the optical Hall effect in naturally doped high-quality wurtzite-structure InN thin films by generalized ellipsometry reveal that both the surface and the interior (bulk) free electron densities decrease with power-law dependencies on the film thickness. We discover a significant deviation between the bulk electron and dislocation densities. This difference is attributed here to the existence of surface defects with activation mechanism different from bulk dislocations and identifies the possible origin of the so far persistent natural n-type conductivity in InN. We further quantify the anisotropy of the Gamma-point effective mass.
Place, publisher, year, edition, pages
2008. Vol. 37, no 5, 611-615 p.
InN, electronic properties, electron effective mass, infrared and THz magneto-optic ellipsometry
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-45899DOI: 10.1007/s11664-008-0385-8OAI: oai:DiVA.org:liu-45899DiVA: diva2:266795