Photoemission studies of Ti{sub 3}SiC{sub 2} and nanocrystalline-TiC/amorphous-SiC nanocomposite thin films

Journal Article · Sat Jul 15 04:00:00 EDT 2006 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.74.045417· OSTI ID:20853352

Eklund, P; Emmerlich, J; Hoegberg, H; Hultman, L ^[1]; Virojanadara, C; Johansson, L I ^[2]

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1. Thin Film Physics Division, Department of Physics, Chemistry, and Biology, IFM, Linkoeping University, S-581 83 Linkoeping (Sweden)
2. Materials Physics Division, Department of Physics, Chemistry, and Biology, IFM, Linkoeping University, S-581 83 Linkoeping (Sweden)

Photoemission studies using synchrotron radiation have been performed on epitaxial Ti{sub 3}SiC{sub 2}(0001) and compound nanocrystalline (nc-)TiC/amorphous (a-)SiC thin films deposited by magnetron sputtering. As-introduced samples were found to be covered by surface oxides, SiO{sub x} and TiO{sub x}. These oxides could be removed by in-situ annealing to {approx}1000 deg. C. For as-annealed Ti{sub 3}SiC{sub 2}(0001), surface Si was observed and interpreted as originating from decomposition of Ti{sub 3}SiC{sub 2} through Si out-diffusion. For nc-TiC/a-SiC annealed in situ to {approx}1000 deg. C, the surface instead exhibited a dominant contribution from graphitic carbon, also with the presence of Si, due to C and Si out-diffusion from the a-SiC compound or from grain boundaries.

• OSTI ID: 20853352
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 4 Vol. 74; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMORPHOUS STATE
ANNEALING
COMPOSITE MATERIALS
CRYSTALS
DECOMPOSITION
DIFFUSION
EPITAXY
GRAIN BOUNDARIES
GRAPHITE
LAYERS
NANOSTRUCTURES
PHOTOELECTRON SPECTROSCOPY
PHOTOEMISSION
SEMICONDUCTOR MATERIALS
SILICON OXIDES
SPUTTERING
SURFACE COATING
SURFACES
SYNCHROTRON RADIATION
THIN FILMS
TITANIUM CARBIDES