Optical constants of copper in s-d model

Ahuja, A. K. ; Auluck, S. ; Joshi, S. K. (1981) Optical constants of copper in s-d model Solid State Communications, 38 (4). pp. 275-277. ISSN 0038-1098

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/003810...

Related URL: http://dx.doi.org/10.1016/0038-1098(81)90460-9


A non-interacting s-d band model is used to evaluate ε2(ω) in copper. The free electron approximation is used for electrons in s-band, while a simplified tight-binding scheme is used for the d-electrons. It is found that only d-bands with m = 0 contribute to optical transitions. The transition matrix elements are explicitly calculated. The calculated ε2(ω) gives reasonable agreement with measured optical conductivity.

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