1.1k citations · 4.3k across the 70 of their papers we have counts for
23 papers · 1 filter
An ideal rapid-cycle Thouless pump
S. Malikis, V. Cheianov
Thouless pumping is a fundamental instance of quantized transport, which is topologically protected. Although its theoretical importance, the adiabaticity condition is an obstacle…
Non-universality of the adiabatic chiral magnetic effect in a clean Weyl semimetal slab
Artem Ivashko, Vadim Cheianov, Jimmy A. Hutasoit
The adiabatic chiral magnetic effect (CME) is a phenomenon by which a slowly oscillating magnetic field applied to a conducting medium induces an electric current in the instantane…
Adiabatic Chiral Magnetic Effect in Weyl semimetal wires
Artem Ivashko, Vadim Cheianov
The Chiral Magnetic Effect (CME) is a phenomenon by which an electric current develops in the direction of a magnetic field applied to a material. Recent theoretical research sugge…
Two-terminal transport along a proximity induced superconducting quantum Hall edge
Oleksandr Gamayun, Jimmy A. Hutasoit, Vadim V. Cheianov
We study electric transport along an integer quantum Hall edge where the proximity effect is induced due to a coupling to a superconductor. Such an edge exhibits two Majorana-Weyl…
The enigma of the fractional quantum Hall effect
Jimmy A. Hutasoit, Ajit C. Balram, Sutirtha Mukherjee +5
The fractional quantum Hall effect at , which has been definitively observed, is one of the last fractions for which no viable explanation has so far been demonstrated. Ou…
Moire pattern as a magnifying glass for strain and dislocations in van der Waals heterostructures
Diana A. Cosma, John R. Wallbank, Vadim Cheianov +1
We consider the role of deformations in graphene heterostructures with hexagonal crystals (including strain, wrinkles and dislocations) on the geometrical properties of moire patte…
Mesoscopic fluctuations of conductance of a helical edge contaminated by magnetic impurities
Vadim Cheianov, Leonid Glazman
Elastic backscattering of electrons moving along the helical edge is prohibited by time-reversal symmetry (TRS). We demonstrate, however, that an ensemble of magnetic impurities ma…
Classical and quantum magneto-oscillations of current flow near a p-n junction in graphene
Aavishkar A. Patel, Nathan Davies, Vadim Cheianov +1
The proposed semiclassical theory predicts two types of oscillations in the flow of current injected from a point source near a ballistic p-n junction in graphene in a strong magne…
Phases of the excitonic condensate in two-layer graphene
Yevhen F. Suprunenko, Vadim Cheianov, Vladimir I. Fal'ko
Two graphene monolayers that are oppositely charged and placed close to each other are considered. Taking into account valley and spin degeneracy of electrons we analyze the symmet…
Skipping and snake orbits of electrons: singularities and catastrophes
Nathan Davies, Aavishkar A. Patel, Alberto Cortijo +3
Near the sample edge, or a sharp magnetic field step the drift of two-dimensional electrons in a magnetic field has the form of skipping/snake orbits. We show that families of skip…
Random resistor network model of minimal conductivity in graphene
V. V. Cheianov, V. I. Falko, B. L. Altshuler +1
Transport in undoped graphene is related to percolating current patterns in the networks of {\em N-} and {\em P}-type regions reflecting the strong bipolar charge density fluctuati…
Veselago Lens for Electrons: Focusing and Caustics in Graphene p-n Junctions
Vadim V. Cheianov, Vladimir Fal'ko, B. L. Altshuler
The focusing of electric current by a single \textit{p-n} junction in graphene is predicted. We show that precise focusing can be achieved by fine-tuning the densities of carriers…
Resonant dephasing in the electronic Mach-Zehnder interferometer
Eugene V. Sukhorukov, Vadim V. Cheianov
We address the recently-observed unexpected behavior of Aharonov-Bohm oscillations in the electronic Mach-Zehnder interferometer that was realized experimentally in a quantum Hall…
Friedel oscillations, impurity scattering and temperature dependence of resistivity in graphene
Vadim V. Cheianov, Vladimir I. Fal'ko
We show that Friedel oscillations (FO) in grapehene are strongly affected by the chirality of electrons in this material. In particular, the FO of the charge density around an impu…
Selective transmission of Dirac electrons and ballistic magnetoresistance of \textit{n-p} junctions in graphene
Vadim V. Cheianov, Vladimir I. Fal'ko
We show that an electrostatically created n-p junction separating the electron and hole gas regions in a graphene monolayer transmits only those quasiparticles that approach it alm…
Non-Markovian Effects on the Two-Dimensional Magnetotransport: Low-field Anomaly in Magnetoresistance
Vadim V. Cheianov, A. P. Dmitriev, V. Yu. Kachorovskii
We discuss classical magnetotransport in a two-dimensional system with strong scatterers. Even in the limit of very low field, when ( is the cyclotron frequency,…
Anomalous Negative Magnetoresistance Caused by Non-Markovian Effects
Vadim V. Cheianov, A. P. Dmitriev, V. Yu. Kachorovskii
A theory of recently discovered anomalous low-field magnetoresistance is developed for the system of two-dimensional electrons scattered by hard disks of radius randomly distr…
The anomalous 0.5 and 0.7 conductance plateaus in quantum point contacts
Henrik Bruus, Vadim V. Cheianov, Karsten Flensberg
The anomalous 0.5 and 0.7 conductance plateaus in quantum point contacts in zero magnetic field are analyzed within a phenomenological model. The model utilizes the Landauer-Buttik…
From mesoscopic magnetism to the anomalous 0.7 conductance plateau
Henrik Bruus, Vadim V. Cheianov, Karsten Flensberg
We present a simple phenomenological model which offers a unifying interpretation of the experimental observations on the 0.7 conductance anomaly of quantum point contacts. The mod…
Electron-energy-loss spectroscopy of the C60 molecule
D. A. Gorokhov, R. A. Suris, V. V. Cheianov
In this work we present a theoretical study of EELS (electron-energy-loss spectroscopy) experiments on the molecule. Our treatment of the problem is based on the sim…
Universality of transport properties in equilibrium, Goldstone theorem and chiral anomaly
Anton Yu. Alekseev, Vadim V. Cheianov, Juerg Froehlich
We study transport in a class of physical systems possessing two conserved chiral charges. We describe a relation between universality of transport properties of such systems and t…
Universality of equilibrium one-dimensional transport from gauge invariance
Anton Yu. Alekseev, Vadim V. Cheianov, Jurg Froehlich
In this letter we address the question how interactions affect the DC conductance of a one-dimensional electron system not necessarily adequately described by the Luttinger model.…
On nonuniversal conductance quantization in high-quality quantum wires
Anton Yu. Alekseev, Vadim V. Cheianov
We present a theoretical analysis of recent experimental results of Yacoby et al. on transport properties of high quality quantum wires. We suggest an explanation of observed devia…