Sökning: id:"swepub:oai:DiVA.org:liu-173427" >
Phase Transformatio...
Phase Transformation and Superstructure Formation in (Ti-0.5, Mg-0.5)N Thin Films through High-Temperature Annealing
-
- Gharavi, Mohammad Amin (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Le Febvrier, Arnaud (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Lu, Jun (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
visa fler...
-
- Greczynski, Grzegorz (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
- Alling, Björn (författare)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
-
- Armiento, Rickard (författare)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
-
- Eklund, Per (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
-
visa färre...
-
(creator_code:org_t)
- 2021-01-14
- 2021
- Engelska.
-
Ingår i: Coatings. - : MDPI. - 2079-6412. ; 11:1
- Relaterad länk:
-
https://liu.diva-por... (primary) (Raw object)
-
visa fler...
-
https://www.mdpi.com...
-
https://urn.kb.se/re...
-
https://doi.org/10.3...
-
visa färre...
Abstract
Ämnesord
Stäng
- (Ti-0.5, Mg-0.5)N thin films were synthesized by reactive dc magnetron sputtering from elemental targets onto c-cut sapphire substrates. Characterization by theta-2 theta X-ray diffraction and pole figure measurements shows a rock-salt cubic structure with (111)-oriented growth and a twin-domain structure. The films exhibit an electrical resistivity of 150 m omega center dot cm, as measured by four-point-probe, and a Seebeck coefficient of -25 mu V/K. It is shown that high temperature (similar to 800 degrees C) annealing in a nitrogen atmosphere leads to the formation of a cubic LiTiO2-type superstructure as seen by high-resolution scanning transmission electron microscopy. The corresponding phase formation is possibly influenced by oxygen contamination present in the as-deposited films resulting in a cubic superstructure. Density functional theory calculations utilizing the generalized gradient approximation (GGA) functionals show that the LiTiO2-type TiMgN2 structure has a 0.07 eV direct bandgap.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- sputtering; thermoelectrics; titanium nitride; magnesium nitride; ternary nitride
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
-
Coatings
(Sök värdpublikationen i LIBRIS)
Till lärosätets databas