Mn-rich clusters in GaN: Hexagonal or cubic symmetry?

MartÃnez-Criado, G., Somogyi, A., Ramos, S., Campo, J., Tucoulou, R., Salome, M., Susini, J., Hermann, M., Eickhoff, M., Stutzmann, M. and others. (2005) Mn-rich clusters in GaN: Hexagonal or cubic symmetry? Applied Physics Letters, 86 (13). pp. 1-3. ISSN 00036951 (ISSN). (doi:10.1063/1.1886908) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:47000)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
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Abstract

In this study, we report the application of synchrotron radiation microprobe to the analysis of Mn-rich clusters in GaN. From the Mn and Ga fluorescence line intensity ratio, an average Mn concentration of 11% was deduced. A combination of fluorescence mapping with spectroscopic techniques enabled us to examine not only the cluster elemental nature but also their crystallographic orientation on the submicron scale. The strong polarization-dependent x-ray absorption near-edge structure features showed the preservation of the hexagonal symmetry in both cluster-free and Mn-rich regions. However, from the x-ray absorption data taken inside the clusters, a preferential disorder was observed in the direction parallel to the crystal growth rather than perpendicular to it. Â© 2005 American Institute of Physics.

Item Type:	Article
DOI/Identification number:	10.1063/1.1886908
Uncontrolled keywords:	Physics of Quantum Materials, Crystallography, Fluorescence, Light absorption, Molecular beam epitaxy, Spectroscopic analysis, Synchrotron radiation, Clusterization, Dilute magnetic semiconductors (DMS), Fluorescence mapping, X-ray absorption, Gallium nitride
Subjects:	Q Science > QC Physics > QC173.45 Condensed Matter
Divisions:	Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User:	Silvia Ramos Perez
Date Deposited:	30 Jan 2015 10:17 UTC
Last Modified:	16 Nov 2021 10:19 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/47000 (The current URI for this page, for reference purposes)

University of Kent Author Information

Ramos, S..

Creator's ORCID:	https://orcid.org/0000-0003-2725-7706
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