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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577521004008
|2 doi
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|a eng
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|a Isomura, Noritake
|e verfasserin
|4 aut
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|a Local atomic structure analysis around Mg atom doped in GaN by X-ray absorption spectroscopy and spectrum simulations
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 02.07.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The identification of the incorporated site of magnesium (Mg) and hydrogen (H) required for p-type formation in gallium nitride (GaN) power devices has been demonstrated by X-ray absorption spectroscopy (XAS). In this study, the fluorescence line of Mg with 3 × 1019 atoms cm-3 was successfully separated from that of Ga using a superconducting tunnel junction array detector with high sensitivity and high energy resolution, and consequently the Mg K-edge XAS spectra of such dilute samples were obtained. The site of Mg atoms incorporated into the GaN lattice was identified as the Ga substitutional site by comparing the experimental XAS spectrum with the simulated spectra calculated by density functional theory. In addition, the presence or absence of H around Mg can be determined through distinctive characteristics expected from the spectrum simulations
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|a Journal Article
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|a X-ray absorption fine structure
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|a density functional theory
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|a dopants
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|a gallium nitride
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|a magnesium
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|a Kimoto, Yasuji
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 28(2021), Pt 4 vom: 01. Juli, Seite 1114-1118
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
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|g volume:28
|g year:2021
|g number:Pt 4
|g day:01
|g month:07
|g pages:1114-1118
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|u http://dx.doi.org/10.1107/S1600577521004008
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|d 28
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|h 1114-1118
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