Electronic Raman scattering from Mg-doped wurtzite GaN

K. T. Tsen, C. Koch, Y. Chen, H. Morkoc, J. Li, J. Y. Lin, H. X. Jiang

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Electronic Raman scattering experiments have been carried out on both MBE and MOCVD-grown Mg-doped wurtzite GaN samples. Aside from the expected Raman lines, a broad structure (FWHM ≅ 15cm-1) observed for the first time at around 841cm-1 is attributed to the electronic Raman scattering from neutral Mg impurities in Mg-doped GaN. From the analysis of the temperature-dependence of this electronic Raman scattering signal binding energy of the Mg impurities in wurtzite GaN has been found to be Eb ≅ 172 ± 20meV. These experimental results demonstrate that the energy between the ground and first excited states of Mg impurities in wurtzite GaN is about 3/5 of its binding energy.

Original languageEnglish
Pages (from-to)W11.42.1 - W11.42.6
JournalMaterials Research Society Symposium - Proceedings
StatePublished - 2000
EventThe 1999 MRS Fall Meeting - Symposium W 'GaN and Related Alloys' - Boston, MA, USA
Duration: Nov 28 1999Dec 3 1999


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