Optical properties of perovskite alkaline earth titanates : a formulation

Kamal Krishna Saha; Tanusri Saha-Dasgupta; Abhijit Mookerjee; Sonali Saha; T. P. Sinha

doi:10.1088/0953-8984/14/15/301

Optical properties of perovskite alkaline earth titanates : a formulation

Materials Science 2009-11-07 v1

Authors: Kamal Krishna Saha , Tanusri Saha-Dasgupta , Abhijit Mookerjee , Sonali Saha , T. P. Sinha

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Abstract

In this communication we suggest a formulation of the optical conductivity as a convolution of an energy resolved joint density of states and an energy-frequency labelled transition rate. Our final aim is to develop a scheme based on the augmented space recursion for random systems. In order to gain confidence in our formulation, we apply the formulation to three alkaline earth titanates CaTiO_3, SrTiO_3 and BaTiO_3 and compare our results with available data on optical properties of these systems.

Keywords

optical conductivity perovskite titanates joint density of states transition rate augmented space recursion

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@article{arxiv.cond-mat/0203042,
  title  = {Optical properties of perovskite alkaline earth titanates : a formulation},
  author = {Kamal Krishna Saha and Tanusri Saha-Dasgupta and Abhijit Mookerjee and Sonali Saha and T. P. Sinha},
  journal= {arXiv preprint arXiv:cond-mat/0203042},
  year   = {2009}
}

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19 pages, 9 figures, Submitted to Journal of Physics: Condensed Matter

Optical properties of perovskite alkaline earth titanates : a formulation

Abstract

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