Optical properties of polycrystalline nickel silicides
- 15 November 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 42 (14), 8939-8946
- https://doi.org/10.1103/physrevb.42.8939
Abstract
The near-normal reflectivity of polycrystalline Si, Si, NiSi, and from 0.01 to 6 eV and the dielectric functions obtained by Kramers-Kronig analysis are presented. The effect of an oxide overlayer on the optical properties is also considered. The low-energy response is discussed in terms of the Drude model and compared with the transport measurements. The higher-energy interband spectrum is interpreted on the basis of the calculated density of states and photoemission results. In particular, the optical structures of are correlated to interband transitions using the joint density of states obtained by band-structure calculations.
Keywords
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