THEORY OF ELECTRON PHENOMENA IN CONDUCTING SYSTEMS

Group members:
Prof. Dr. Yuriy A. Kolesnichenko (Group Leader);
Prof. Dr. Valentin G. Peschansky;
Dr. Sc. Dmitry  I. Stepanenko;
Dr. Igor V. Kozlov

Subjects of scientific researches:
We study theoretically kinetic and thermodynamic properties of quasi-two-dimensional and quasi-one-dimensional conductors for obtaining essentially new physical representations and information concerning processes in these classes of conducting systems. We consider a following complex of concrete fundamental problems: Studying of electron transport in highly anisotropic conductors with an arbitrary electron energy spectrum taking into account various relaxation processes and electron – electron correlation. Research of quantum oscillatory effects in a strong magnetic field with the purpose to obtain the data about energy spectrum of layered organic compounds and various modifications of conducting systems based on carbon. Studying of magnetic properties of organic conductors under strong magnetism of conduction electrons. Investigation of thermoelectric effects in layered conductors placed in quantizing magnetic field at presence of several groups of charge carriers. Research of high-frequency phenomena in organic conductors and other low-dimensional structures in view of Fermi-liquid correlations of charge carriers. Search for new types of weakly damping collective modes owing to oscillation electron and spin density.

1. Kolesnichenko Yu.A., Peschansky V.G., and Stepanenko D.I. High-frequency resonances and weakly damped collective modes in highly anisotropic Q1D conductors // Low Temperature Physics 43, 186 (2017); http://doi.org/10.1063/1.4977209
2. Kozlov I.V., Kolesnichenko Yu.A. Anisotropic Friedel oscillations in a two-dimensional electron gas with a Rashba–Dresselhaus spin–orbit interaction // Low Temperature Physics 43, № 7, (2017); https://doi.org/10.1063/1.4995636
3. Kozlov I.V., Kolesnichenko Yu.A. Friedel oscillations in 2D electron gas from spin-orbit interaction in a parallel magnetic field // Low Temperature Physics 44, 1299-1308 (2018); https://doi.org/10.1063/1.5078625
4. Kozlov I.V., Kolesnichenko Yu.A. Exact and quasiclassical Green's functions of two-dimensional electron gas with Rashba–Dresselhaus spin–orbit interaction in parallel magnetic field // Physics Letters A 383, № 8, 764-769 (2019); https://doi.org/10.1016/j.physleta.2018.11.042
5. Kozlov I.V., Kolesnichenko Yu.A. Magnetic field driven topological transitions in the noncentrosymmetric energy spectrum of the two-dimensional electron gas with Rashba-Dresselhaus spin-orbit interaction. Physical Review B. 2019. 99, 085129 https://doi.org/10.1103/PhysRevB.99.085129
6. Stepanenko D.I. Combined Resonance of the Interlayer Conductivity in Quasi-Two-Dimensional Conductors. Jetp Lett. 2019. 110, 505  https://doi.org/10.1134/S0021364019190111
7. Peschansky, V.G., Galbova, O. & Yiasemides, K. Shubnikov–de Haas Thermoelectric Field Oscillations in Layered Conductors in the Vicinity of a Topological Lifshits Transition. J. Exp. Theor. Phys. 2019. 129, 292 https://doi.org/10.1134/S1063776119080077