Combined ab-initio and N-K, Ti-L2,3, V-L2,3 electron energy-loss near edge structure studies for TiN and VN films
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Boriana Rashkova
Abstract
In this work we examined the electronic structure of well-defined TiN/VN bilayers grown on a MgO(100) substrate by both experimentation and calculation. The electron energy-loss spectra were taken in transmission electron microscopes equipped with and without a monochromator. The experimental studies reveal nearly stoichiometric phases with atomic ratios Ti/N of 1.1 ± 0.1 and V/N of 1.2 ± 0.1. The comparison of the electron energy-loss near-edge structures of the N-K, Ti-L2,3, and V-L2,3 spectra with the theoretically calculated partial density of states using density functional theory revealed that core hole effects must be included. The calculations indicate that the N-K edge is sensitive to vacancies in the sublattice of VN. Thus, the N-K edge may be used as a fingerprint when studying non-stoichiometric or diffusional phenomena.
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© 2007, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Professor Dr. phil. Dr. techn. e. h. Hellmut F. Fischmeister
- Basic
- Compressive deformation of lamellar microstructures – a short review
- Influence of external and internal length scale on the flow stress of copper
- Spinodal decomposition of cubic Ti1−xAlxN: Comparison between experiments and modeling
- Combined ab-initio and N-K, Ti-L2,3, V-L2,3 electron energy-loss near edge structure studies for TiN and VN films
- Gold-enhanced oxidation of silicon nanowires
- Numerical determination of parameterised failure curves for ductile structural materials
- Relaxation of semiconductor nanostructures using molecular dynamics with analytic bond order potentials*
- Examination of phase transformations in the system Fe–N–C by means of nitrocarburising reactions and secondary annealing experiments; the α + ∊ two-phase equilibrium
- Applied
- On the evolution of secondary hardening carbides in a high-speed steel characterised by APFIM and SANS
- Silicon nitride tools for hot rolling of high-alloyed steel and superalloy wires – load analysis and first practical tests
- Development of the unloading stiffness during cyclic plastic deformation of a high-strength aluminium alloy in different tempers
- Enhanced thermal stability of a cobalt–boron carbide nanocomposite by ion-implantation
- Experimental studies and thermodynamic simulation of phase transformations in high Nb containing γ-TiAl based alloys
- Kinetics of nanoscale structure development during Mg-vapour reduction of tantalum oxide
- On the interaction of ductile damage and materials softening of a Ni-base alloy during hot deformation
- Adhesive contact between flat punches with finite edge radius and an elastic half-space
- Notifications
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Professor Dr. phil. Dr. techn. e. h. Hellmut F. Fischmeister
- Basic
- Compressive deformation of lamellar microstructures – a short review
- Influence of external and internal length scale on the flow stress of copper
- Spinodal decomposition of cubic Ti1−xAlxN: Comparison between experiments and modeling
- Combined ab-initio and N-K, Ti-L2,3, V-L2,3 electron energy-loss near edge structure studies for TiN and VN films
- Gold-enhanced oxidation of silicon nanowires
- Numerical determination of parameterised failure curves for ductile structural materials
- Relaxation of semiconductor nanostructures using molecular dynamics with analytic bond order potentials*
- Examination of phase transformations in the system Fe–N–C by means of nitrocarburising reactions and secondary annealing experiments; the α + ∊ two-phase equilibrium
- Applied
- On the evolution of secondary hardening carbides in a high-speed steel characterised by APFIM and SANS
- Silicon nitride tools for hot rolling of high-alloyed steel and superalloy wires – load analysis and first practical tests
- Development of the unloading stiffness during cyclic plastic deformation of a high-strength aluminium alloy in different tempers
- Enhanced thermal stability of a cobalt–boron carbide nanocomposite by ion-implantation
- Experimental studies and thermodynamic simulation of phase transformations in high Nb containing γ-TiAl based alloys
- Kinetics of nanoscale structure development during Mg-vapour reduction of tantalum oxide
- On the interaction of ductile damage and materials softening of a Ni-base alloy during hot deformation
- Adhesive contact between flat punches with finite edge radius and an elastic half-space
- Notifications
- DGM News
