Ukrainian Journal of Physical Optics

Number 1, Volume 1, December 2000

Quantum-mechanical expression for microscopic dielectric tensor in incommensurate phases
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O.S.Kushnir, L.O.Lokot

Quantum-mechanical calculations for the dielectric permittivity tensor in incommensurately modulated ionic-type insulators are carried out. The microscopic Fourier components of the tensor are obtained. The role of different reciprocal lattice vectors in the optical response of crystal is clarified

Key words: insulator, dielectric permittivity tensor, incommensurate phase

doi 10.3116/16091833/1/1/40/2000

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