Search: onr:"swepub:oai:DiVA.org:liu-49750" >
Overcoordinated hyd...
Overcoordinated hydrogens in the carbon vacancy : Donor centers of SiC
-
- Gali, Adam (author)
- Linköpings universitet,Tekniska högskolan,Institutionen för fysik, kemi och biologi
-
- Aradi, B (author)
- Tech Univ Budapest, Dept Atom Phys, H-1111 Budapest, Hungary Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
-
- Deak, P (author)
- Tech Univ Budapest, Dept Atom Phys, H-1111 Budapest, Hungary Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
-
show more...
-
- Choyke, WJ (author)
- Tech Univ Budapest, Dept Atom Phys, H-1111 Budapest, Hungary Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
-
- Nguyen, Tien Son (author)
- Linköpings universitet,Halvledarmaterial,Tekniska högskolan
-
show less...
-
(creator_code:org_t)
- 2000
- 2000
- English.
-
In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 84:21, s. 4926-4929
- Related links:
-
https://urn.kb.se/re...
Abstract
Subject headings
Close
- Epitaxial silicon carbide is likely to contain hydrogen and vacancies (V), therefore, V + nH complexes are likely to influence its electronic properties. Using ob initio calculations we show that neutral and positive H atoms are trapped by carbon vacancies (V-C) in three-center bonds with two Si neighbors. The double positive charge state of V-C + H is not stable in equilibrium and in the triply positive state H binds only to one of the Si neighbors. At most two H atoms can be accommodated by a single V-C. The V-C + nH complexes have donor character and exhibit rather atypical vibration modes for Si-H bonds. Occupation levels and spin distributions were calculated and compared fur V-C + H and V-C.
Keyword
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database