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Andre K. Geim
Researcher at University of Manchester
Publications - 466
Citations - 232754
Andre K. Geim is an academic researcher from University of Manchester. The author has contributed to research in topics: Graphene & Magnetic field. The author has an hindex of 125, co-authored 445 publications receiving 206833 citations. Previous affiliations of Andre K. Geim include University of Nottingham & Russian Academy of Sciences.
Papers
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Journal ArticleDOI
Graphene-hBN resonant tunneling diodes as high-frequency oscillators
Jennifer Gaskell,Laurence Eaves,K. S. Novoselov,Artem Mishchenko,Andre K. Geim,T. M. Fromhold,Mark Greenaway +6 more
TL;DR: In this paper, the potential of two-terminal graphene-hBN-graphene resonant tunneling diodes as high-frequency oscillators was assessed using self-consistent quantum transport and electrostatic simulations.
Proceedings ArticleDOI
Graphene Based Spin Valve Devices
TL;DR: In this article, a spin valve effect was observed in planar graphite, where the applied field is swept between +450 G and -450 G. This was the first observation of spin valve effects in graphite.
Journal ArticleDOI
Strong magnetophonon oscillations in extra-large graphene
Piranavan Kumaravadivel,Mark Greenaway,Mark Greenaway,David J. Perello,A. I. Berdyugin,John Birkbeck,J. Wengraf,J. Wengraf,Song Liu,James H. Edgar,Andre K. Geim,Laurence Eaves,Laurence Eaves,R. Krishna Kumar +13 more
TL;DR: This work performs magnetotransport measurements on graphene/hexagonal boron-nitride Hall bars and demonstrates a precise, spectroscopic method for studying electron-phonon interactions in van der Waals heterostructures and highlights the crucial importance of device width when probing quantum effects.
Journal ArticleDOI
Minibands in twisted bilayer graphene probed by magnetic focusing
A. I. Berdyugin,Bonnie Tsim,Piranavan Kumaravadivel,Shuigang Xu,Adrian Ceferino,Angelika Knothe,R. Krishna Kumar,T. Taniguchi,Kenji Watanabe,Andre K. Geim,Irina V. Grigorieva,Irina V. Grigorieva,Vladimir I. Fal'ko,Vladimir I. Fal'ko +13 more
TL;DR: In this article, the authors used magnetic focusing to probe narrow bands in graphene bilayers twisted at 2 degrees and found that their minibands support long-range ballistic transport limited at low temperatures by intrinsic electron-electron scattering.
Posted Content
Magnetization of mesoscopic superconducting discs
TL;DR: In this article, the Ginzburg-Landau eqns were coupled with three dimensional Maxwell eqns to reveal intriguing magnetic response of small superconducting particles, qualitatively different from the two dimensional approximation but in agreement with recent experiments.