V
Vadim Cheianov
Researcher at Leiden University
Publications - 93
Citations - 4479
Vadim Cheianov is an academic researcher from Leiden University. The author has contributed to research in topics: Quantum Hall effect & Graphene. The author has an hindex of 28, co-authored 88 publications receiving 3998 citations. Previous affiliations of Vadim Cheianov include Niels Bohr Institute & Uppsala University.
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The focusing of electron flow and a Veselago lens in graphene p-n junctions.
TL;DR: The focusing of electric current by a single p-n junction in graphene is theoretically predicted and may be useful for the engineering of electronic lenses and focused beam splitters using gate-controlled n-p-n junctions in graphene-based transistors.
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Selective transmission of Dirac electrons and ballistic magnetoresistance of n − p junctions in graphene
TL;DR: In this article, an electrostatically created n-p junction separating the electron and hole gas regions in a graphene monolayer was shown to transmit only those quasiparticles that approach it almost perpendicularly to the np interface.
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Tunable metal-insulator transition in double-layer graphene heterostructures
Leonid Ponomarenko,Andre K. Geim,Andrey A. Zhukov,Rashid Jalil,Sergey V. Morozov,Kostya S. Novoselov,Irina V. Grigorieva,E. H. Hill,Vadim Cheianov,Vladimir I. Fal'ko,Kenji Watanabe,Takashi Taniguchi,Roman V. Gorbachev +12 more
TL;DR: In this paper, the authors reported a strong Anderson localization and the corresponding metal-insulator transition in ultra-high-quality graphene, where the transition is controlled externally, by changing the carrier density in another graphene layer placed at a distance of several nm and decoupled electrically.
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Friedel oscillations, impurity scattering, and temperature dependence of resistivity in graphene.
TL;DR: Friedel oscillations in grapehene are strongly affected by the chirality of electrons in this material and the FO of the charge density around an impurity show a faster decay than in conventional 2D electron systems.
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Universality of Transport Properties in Equilibrium, the Goldstone Theorem, and Chiral Anomaly
TL;DR: In this paper, the authors studied transport properties of a class of physical systems possessing two conserved chiral charges and showed that the nonvanishing of a current expectation value implies the presence of gapless modes, in analogy to the Goldstone theorem.