Mn clusterisation in Ga1-xMnxN

Details Mn clusterisation in Ga1-xMnxN Mn clusterisation in Ga1-xMnxN

2009-05-26

arxiv.org/abs/0905.4158v1

Physics

Condensed Matter

Materials Science

17 pages, 5 figures, to be published in Solid. State Commun

Scientific paper

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.

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