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O. Kyriienko

Publications and source records attributed to O. Kyriienko.

38 records · Page 3Linked to original sources

Angle-resolved reflectance and surface plasmonics of the MAX phases

We investigate theoretically the optical response of bulk samples and thin films of the MAX phases materials, accounting for their large electrical anisotropy. We reveal the unusual behaviour of the reflection and transmittion spectra as a function of the incidence angle and predict the effect of the inverse total internal reflection. We also investigate the behaviour of the surface plasmon modes in bulk samples and thin films and analyse the difference between MAX materials and conventional metals.

cond-mat.mtrl-sci↗

Elementary excitations in spinor polariton- electron systems

We consider effective interactions in a 2D hybrid polariton- electron system and calculate dispersion of elementary excitations accounting the spin degree of freedom of the particles. Due to the crucial role played by the exchange term in polariton- electron interactions the dispersions of this system become spin- dependent and show unusual behavior. The coupling of the excitations of the condensate with 2D plasmon can result in appearence of roton minimum in the dispersion and destruction of the condensate for close enough situated quantum wells with electrons and excitons.

cond-mat.quant-gas↗