A1 Refereed original research article in a scientific journal

Detection of metallic In nanoparticles in InGaN alloys




AuthorsKomissarova TA, Jmerik VN, Ivanov SV, Paturi P

PublisherAMER INST PHYSICS

Publication year2011

JournalApplied Physics Letters

Journal name in sourceAPPLIED PHYSICS LETTERS

Journal acronymAPPL PHYS LETT

Number in series7

Volume99

Issue7

Number of pages3

ISSN0003-6951

DOIhttps://doi.org/10.1063/1.3626039


Abstract
We report on detection of metallic indium nanoparticles in the InxGa(1-x)N alloys grown by plasma-assisted molecular beam epitaxy at x exceeding 0.38 +/- 0.03, using Hall effect measurements in a wide magnetic field range (up to 30 T). Observation of the abnormally increasing magnetic field dependences of the absolute value of Hall coefficient, approximated in the frames of the model taking into account influence of the highly conductive inclusions, was employed as a reliable criterion of presence of the In nanoparticles in the studied layers. The onset of In inclusions is governed by x rather than growth stoichiometric conditions. (C) 2011 American Institute of Physics. [doi:10.1063/1.3626039]



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