Ukrainian Journal of Physical Optics

Number 4, Volume 5, 2004

On the Electron Spectrum of Crystalline Superstructures Order this article

B.A.Lukiyanets

Electron spectrum is analysed for the crystal that can be represented as a system of two ordered structures nested one into the other. Intercalated layered crystals, crystalline systems with the spin, charge, deformation or dipole ordering, the adsorbent-adsorbate systems and the superstructures may be relevant examples. The detailed consideration of the structures with incom-mensurable parameters of their lattices is presented. It is pointed to a unique possibility for essential change in the electron spectrum, in particular for the case of ferroelectrics.

PACS: 71.15.-m, 64.70.Rh
Key words: superstructure, incommensurable lattices, electron spectrum

doi 10.3116/16091833/5/4/147/2004

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