75 citations · 564 across the 45 of their papers we have counts for
39 papers · 1 filter
Electron--electron scattering and conductivity of disordered systems with Galilean-invariant spectrum
K. E. Nagaev
The electron--electron scattering does not affect the electrical current in Galilean--invariant systems. We show that nevertheless electron--electron collisions may contribute to t…
Finite-frequency response of Rasba electron gas with two-particle scattering
K. E. Nagaev
Two-dimensional systems with Rashba spin-orbit coupling are not Galilean invariant and therefore electron--electron collisions in them may affect the current. However when taken al…
Electron-electron scattering and transport properties of spin-orbit coupled electron gas
K. E. Nagaev, A. A. Manoshin
We calculate the electrical and thermal conductivity of a two-dimensional electron gas with strong spin--orbit coupling in which the scattering is dominated by electron--electron c…
Sign reversal of nonlocal response due to electron collisions
K. E. Nagaev
Electron-electron collisions are known to cause a nonlocal voltage drop in a presence of current flow. The semi-phenomenological theory predicts this drop to be opposite to the dir…
Josephson linewidth in a resistively-shunted model with non-sinusoidal current-phase relation
K. E. Nagaev
This is a detailed derivation of the equation for the voltage noise of a resistively shunted Josephson junction with non-sinusoidal current-phase relation, which was presented in S…
Two-particle scattering and resistivity of Rashba electron gas
K. E. Nagaev
We calculate the electrical resistivity of a two-dimensional electron gas that results from two-particle collisions and strong Rashba spin-orbit coupling. In the absence of impurit…
Reply to comment on "Noise in the helical edge channel anisotropically coupled to a local spin"
K. E. Nagaev, S. V. Remizov, D. S. Shapiro
This is the reply to the comment by I. S. Burmistrov, P. D. Kurilovich, and V. D. Kurilovich [arXiv:1903.047241] on our paper "Noise in the helical edge channel anisotropically cou…
Noise in the helical edge channel anisotropically coupled to a local spin
K. E. Nagaev, S. V. Remizov, D. S. Shapiro
We calculate the frequency-dependent shot noise in the edge states of a two-dimensional topological insulator coupled to a magnetic impurity with spin of arbitrary anisotro…
Spin-orbit coupling and resonances in the conductance of quantum wires
V. S. Khrapai, K. E. Nagaev
We investigate a possibility of pair electron-electron e-e collisions in a ballistic wire with spin-orbit coupling and only one populated mode. Unlike in a spin-degenerate system,…
AC Response of the Edge States in a Two-Dimensional Topological Insulator Coupled to a Conducting Puddle
K. E. Nagaev
We calculate an AC response of the edge states of a two-dimensional topological insulator, which can exchange electrons with a conducting puddle in the bulk of the insulator. This…
Electron-electron scattering and conductivity of long multimode channels
K. E. Nagaev
The electron-electron scattering increases the resistance of ballistic many-mode channels whose width is smaller than their length. We show that this increase saturates in the limi…
How an incorrect transition from finite to infinite 2D conductor may result in a false negative relaxation
K. E. Nagaev
We consider the relaxation of a uniform current in a planar 2D conductor with account taken of electromagnetic retardation effects. If the 2D conductivity is larger than the speed…
Current noise generated by spin imbalance in presence of spin relaxation
V. S. Khrapai, K. E. Nagaev
We calculate current (shot) noise in a metallic diffusive conductor generated by spin imbalance in the absence of a net electric current. This situation is modeled in an idealized…
Shot noise in the edge states of 2D topological insulators
P. P. Aseev, K. E. Nagaev
We calculate the resistance and shot noise in the edge states of a 2D topological insulator that result from the exchange of electrons between these states and conducting puddles i…
Cross correlations in disordered, four-terminal graphene-ribbon conductor: Hanbury-Brown and Twiss exchange as a sign of non-universality of noise
Zhenbing Tan, Teemu Nieminen, Antti Puska +7
We have investigated current-current correlations in a cross-shaped conductor made of graphene ribbons. We measured auto and cross correlations and compared them with the theoretic…
Conductance of Interacting Quasi-One-Dimensional Electron Gas with a Scatterer
A. V. Borin, K. E. Nagaev
We calculate the conductance of a quantum wire with two occupied subbands in a presence of a barrier taking into account the interaction between electrons. We extend the renormaliz…
Charge and spin current in a quasi-one-dimensional quantum wire with spin-orbit coupling
K. E. Nagaev, A. S. Goremykina
We show that Rashba spin-orbit coupling may result in an energy gap in the spectrum of electrons in a two-mode quantum wire if a suitable confining potential is chosen. This leads…
Non-universal shot noise in quasiequilibrium spin valves
T. T. Heikkila, K. E. Nagaev
We show that the breakdown of the Wiedemann-Franz law due to electron--electron scattering in diffusive spin valves may result in a strong suppression of the Fano factor that descr…
Temperature-dependent quantum electron transport in 2D point contact
Tatiana Krishtop, Kirill Nagaev
We consider a transmission of electrons through a two-dimensional ballistic point contact in the low-conductance regime below the 0.7-anomaly. The scattering of electrons by Friede…
Electron-Electron scattering and resistivity of ballistic multimode channels
K. E. Nagaev, N. Yu. Sergeeva
We show that electron--electron scattering gives a positive contribution to the resistivity of ballistic multimode wires whose width is much smaller than their length. This contrib…
Electron-electron scattering and nonequilibrium noise in Sharvin contacts
K. E. Nagaev, T. V. Krishtop, N. Yu. Sergeeva
We consider wide ballistic microcontacts with electron-electron scattering in the leads and calculate electric noise and nonlinear conductance in them. Due to a restricted geometry…
Magnetic field induced non-Gaussian fluctuations in macroscopic equilibrium systems
K. E. Nagaev, O. S. Ayvazyan, N. Yu. Sergeeva +1
We calculate the magnetic-field dependent nonlinear conductance and noise in a macroscopic inhomogeneous system. If the system does not possess a specific symmetry, the magnetic fi…
Electron-electron scattering and magnetoresistance of ballistic microcontacts
K. E. Nagaev, T. V. Kostyuchenko
Using a semiclassical Boltzmann equation, we calculate corrections to the Sharvin conductance of a wide 2DEG ballistic contact that result from an electron--electron scattering in…
Effects of Electron-Electron Scattering in Wide Ballistic Microcontacts
K. E. Nagaev, O. S. Ayvazyan
We calculate the corrections to the Sharvin conductance of ballistic multimode microcontacts that result from electron--electron scattering in the leads. Using a semiclassical Bolt…