Crystal field analysis of rare-earth ions energy levels in GaN

•We report on crystal field analysis of Er ion energy levels in cubic and hexagonal GaN.•We present re-measured photoluminescence and excitation photoluminescence spectra of hexagonal GaN:Er3+.•Theoretical calculations reveal that local symmetry of Er in cubic GaN is D2, whereas in hexagonal GaN loc...

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Veröffentlicht in:	Optical materials 2014-11, Vol.37, p.165-174
Hauptverfasser:	Stachowicz, M., Kozanecki, A., Ma, C.-G., Brik, M.G., Lin, J.Y., Jiang, Hx, Zavada, J.M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter Condensed matter: electronic structure, electrical, magnetic, and optical properties Crystals Defect level Doping Energy levels Erbium Exact sciences and technology Fundamental areas of phenomenology (including applications) Gallium nitrides Impurity Local symmetry Optical materials Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optics Optoelectronic devices Other nonlinear optical materials photorefractive and semiconductor materials Photoluminescence Physics Rare earth metals Symmetry Theoretical calculation
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