Functional Mn–Mg{sub k} cation complexes in GaN featured by Raman spectroscopy
- Instituto de Física e Química, Universidade Federal de Itajubá, 37500-903, Itajubá–MG (Brazil)
- Department of Physics, São Paulo State University, Bauru–SP (Brazil)
The evolution of the optical branch in the Raman spectra of (Ga,Mn)N:Mg epitaxial layers as a function of the Mn and Mg concentrations, reveals the interplay between the two dopants. We demonstrate that the various Mn-Mg-induced vibrational modes can be understood in the picture of functional Mn–Mg{sub k} complexes formed when substitutional Mn cations are bound to k substitutional Mg through nitrogen atoms, the number of ligands k being driven by the ratio between the Mg and the Mn concentrations.
- OSTI ID:
- 22253982
- Journal Information:
- Applied Physics Letters, Vol. 103, Issue 21; Other Information: (c) 2013 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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