Mn clusterisation in Ga1-xMnxN
arXiv:0905.4158 · doi:10.1016/j.ssc.2009.05.020
Abstract
Local structure of Mn atoms in Ga1-xMnxN has been investigated by the Mn L3 edge x-ray absorption spectrum (XAS) at total electron yield mode, which preferentially looks at atoms near the surface. A modeling defects configuration, the Mn5 micro-clusters complexed with substitutional MnGa and interstitial MnI is found for the higher Mn doping concentration. This new configuration is also confirmed by the total energy calculations.
17 pages, 5 figures, to be published in Solid. State Commun
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