Abstract
Abstract The results of room-temperature optical study of single-grain simple icosahedral ZnMgHo quasicrystals are presented. The dielectric function ε (ω) of the quasicrystals was measured by spectroscopic ellipsometry technique in the spectral range of 0.1–7 eV. The si-ZnMgHo optical response is a superposition of the free-electron Drude-type contribution and that of the interband transitions. The experimental ε(ω) spectra are well simulated within a framework of the ‘band structure hypothesis’. The deduced parameters of the si-ZnMgHo electron energy spectrum are close to their values determined previously in an analysis of the si-ZnMgHo photoemission data.
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