Density matrix calculation of optical constants from optical to x-ray frequencies

Details Density matrix calculation of optical constants from optical to x-ray frequencies Density matrix calculation of optical constants from optical to x-ray frequencies

2008-10-17

arxiv.org/abs/0810.3271v1

Physics

Condensed Matter

Materials Science

Scientific paper

We present a theory of linear optical constants based on a single-particle density matrix and implemented in an extension of the real-space multiple scattering code FEFF. This approach avoids the need to compute wave-functions explicitly, and yields efficient calculations for frequencies ranging from the IR to hard x-rays, and applicable to arbitrary aperiodic systems. Our approach is illustrated with calculations of optical properties and applications for several materials.

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