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Mg segregation at i...
Mg segregation at inclined facets of pyramidal inversion domains in GaN:Mg
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- Persson, Axel (författare)
- Linköping University,Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten,C3NiT–Janzén, THeMAC
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- Papamichail, Alexis (författare)
- Linköping University,Linköpings universitet,Halvledarmaterial,Tekniska fakulteten,C3NiT–Janzén, THeMAC
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- Darakchieva, Vanya (författare)
- Lund University,Lunds universitet,Linköpings universitet,Halvledarmaterial,Tekniska fakulteten,Lund Univ, Sweden,C3NiT–Janzén, THeMAC,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH
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- Persson, Per O Å (författare)
- Linköping University,Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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(creator_code:org_t)
- 2022-10-26
- 2022
- Engelska.
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Ingår i: Scientific Reports. - : Nature Portfolio. - 2045-2322. ; 12:1
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Abstract
Ämnesord
Stäng
- Structural defects in Mg-doped GaN were analyzed using high-resolution scanning transmission electron microscopy combined with electron energy loss spectroscopy. The defects, in the shape of inverted pyramids, appear at high concentrations of incorporated Mg, which also lead to a reduction in free-hole concentration in Mg doped GaN. Detailed analysis pinpoints the arrangement of atoms in and around the defects and verify the presence of a well-defined layer of Mg at all facets, including the inclined facets. Our observations have resulted in a model of the pyramid-shaped defect, including structural displacements and compositional replacements, which is verified by image simulations. Finally, the total concentration of Mg atoms bound to these defects were evaluated, enabling a correlation between inactive and defect-bound dopants.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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