29 citations · 148 across the 16 of their papers we have counts for
16 papers
Multivalued dispersion equation for plasmon-surface optical phonon coupling in graphene/polar substrate system
S. M. Kukhtaruk, V. A. Kochelap
Dispersion equations are a common paradigm of collective excitation physics. However, in some systems, dispersion equations contain multivalued functions and their solutions are am…
Nanoscale ballistic diodes made of polar materials for amplification and generation of radiation in 10 THz-range
V. A. Kochelap, V. V. Korotyeyev, Yu. M. Lyashchuk +1
We investigate ultra-high frequency electrical properties of nanoscale -- diodes made of polar semiconductors. The calculations show that the coupling between optical…
Diffusion properties of electrons in GaN crystals subjected to electric and magnetic fields
G. I. Syngayivska, V. V. Korotyeyev, V. A. Kochelap
We studied the diffusion coefficient of hot electrons of GaN crystals in moderate electric (1...10 kV/cm) and magnetic (1...4 T) fields. Two configurations, parallel and crossed fi…
Spatial dispersion of the high-frequency conductivity of two-dimensional electron gas subjected to a high electric field: collisionless case
V. V. Korotyeyev, V. A. Kochelap, S. Danylyuk +1
We present the analysis of high-frequency (dynamic) conductivity with the spatial dispersion, , of two-dimensional electron gas subjected to a high electric field. W…
THz frequency- and wavevector-dependent conductivity of low-density drifting electron gas in GaN. Monte Carlo calculations
G. I. Syngayivska, V. V. Korotyeyev, V. A. Kochelap +1
We report the results of Monte Carlo simulation of electron dynamics in stationary and space- and time-dependent electric fields in compensated GaN samples. We have determined the…
Spatially dispersive dynamical response of hot carriers in doped graphene
S. M. Kukhtaruk, V. A. Kochelap, V. N. Sokolov +1
We study theoretically wave-vector and frequency dispersion of the complex dynamic conductivity tensor (DCT), , of doped monolayer graphene under a strong dc…