skip to main content

SciTech ConnectSciTech Connect

Title: Functional Mn–Mg{sub k} cation complexes in GaN featured by Raman spectroscopy

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.
Authors:
;  [1] ;  [2] ;  [3] ;  [4]
  1. Institut für Halbleiter-und-Festkörperphysik, Johannes Kepler University, Altenbergerstr. 69, A-4040 Linz (Austria)
  2. Instituto de Física e Química, Universidade Federal de Itajubá, 37500-903, Itajubá–MG (Brazil)
  3. (Brazil)
  4. Department of Physics, São Paulo State University, Bauru–SP (Brazil)
Publication Date:
OSTI Identifier:
22253982
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 21; Other Information: (c) 2013 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ATOMS; CATIONS; DOPED MATERIALS; EPITAXY; GALLIUM NITRIDES; RAMAN SPECTRA; RAMAN SPECTROSCOPY