Original title:
Ab-initio study of surface energies and structural influece of vacancies in titanium nitride nanolayer
Authors:
Lebeda, M. ; Vlčák, P. ; Veřtát, P. ; Drahokoupil, Jan Document type: Papers Conference/Event: International Conference NANOCON 2020 /12./, Brno (CZ), 20201021
Year:
2021
Language:
eng Abstract:
The surface energies of 8 crystallographic planes and effects of nitrogen vacancies on the lattice parameter in rock salt-like structure of TiN (σ-TiN) were studied using ab-initio method of density functional theory (DFT) with the generalized gradient approximation functional (GGA) as parametrized by Perdex, Burke and Ernzerhof (PBE). The linear decrease of lattice parameter with the increasing presence of nitrogen vacancies up to ca. 80% was observed.\n
Keywords:
ab initio simulation; density functional theory; DFT; lattice parameter; surface energy; TiNx; titanium nitride; vacancies Project no.: CZ.02.1.01/0.0/0.0/16_019/0000760, EF16_019/0000760 Funding provider: OP VVV - SOLID21, GA MŠk Host item entry: NANOCON 2020. 12th International Conference on Nanomaterials - Research & Application. Conference proceedings, ISBN 978-80-87294-98-7, ISSN 2694-930X