Title: DEPENDENCE OF ELECTRON STATES DENSITY OF INTERCALATED LAYER CRYSTAL ON THE INTERCALANT CONCENTRATION
Author(s): N.K.Tovstyuk (Ivan Franko Lviv National University 50 Dragomanov Str., 79005 Lviv, Ukraine), B.A.Lukiyanets (National University ``Lvivska Politekhnika'' 12 Bandera Str., Lviv, 79013, Ukraine)

Electron states density $\rho(\omega)$ depending on the intercalant atoms concentration within the framework of a virtual crystal is investigated. An essential change of $\rho(\omega)$ in the vicinity of the band bottom of the initial layer crystal at certain energy parameters of a crystal matrix, intercalant and their mutual mixing is obtained. Such a change can manifest itself specifically in optical properties in the region of fundamental absorption.

Key words: intercalation, host-guest interaction, electron states density
PACS: 71.20.-b