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Specific features of the electronic structure and optical spectra of nanoparticles with strong electron correlations

Research paper by S. G. Ovchinnikov, B. A. Gizhevskiĭ, Yu. P. Sukhorukov, A. E. Ermakov, M. A. Uĭmin, E. A. Kozlov, Ya. A. Kotov, A. V. Bagazeev

Indexed on: 01 Jun '07Published on: 01 Jun '07Published in: Physics of the Solid State



Abstract

Analysis of the experimental optical spectra of CuO nanoparticles with the electronic structure characterized by strong electron correlations has revealed the appearance of unusual states inside the band gap. The intragap states and the specific features of the electronic structure of CuO nanoparticles are discussed in the framework of the generalized tight-binding method previously developed for describing the electronic structure of superconducting cuprates.