Functional Mn--Mg$_k$ cation complexes in GaN featured by Raman spectroscopy
| Autor: | Devillers, Thibaut, Leite, Douglas Marcel Gonçalves, da Silva, José Humberto Dias, Bonanni, Alberta |
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| Rok vydání: | 2013 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/1.4833024 |
| Popis: | 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$_k$ 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. Comment: Accepted for publication in Applied Physics Letter |
| Databáze: | arXiv |
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