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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
Electronic phase separation in multilayer rhombohedral graphite
Yanmeng Shi,Shuigang Xu,Yaping Yang,Sergey Slizovskiy,Sergey V. Morozov,Seok-Kyun Son,Seok-Kyun Son,Servet Ozdemir,Ciaran Mullan,Julien Barrier,Jun Yin,A. I. Berdyugin,Benjamin A. Piot,Takashi Taniguchi,Kenji Watanabe,Vladimir I. Fal'ko,Vladimir I. Fal'ko,Kostya S. Novoselov,Andre K. Geim,Artem Mishchenko +19 more
TL;DR: It is shown that the bulk electronic states in such rhombohedral graphite are gapped and, at low temperatures, electron transport is dominated by surface states, and spontaneous gap opening shows pronounced hysteresis and other signatures characteristic of electronic phase separation.
Journal ArticleDOI
Direct determination of the crystallographic orientation of graphene edges by atomic resolution imaging
TL;DR: In this article, high-resolution scanning tunneling microscopy (STM) imaging can be used to reveal that certain edges of micromechanically exfoliated single layer graphene crystals on silicon oxide follow either zigzag or armchair orientation.
Posted Content
Charge-polarized interfacial superlattices in marginally twisted hexagonal boron nitride
Colin R. Woods,Pablo Ares,H. Nevison-Andrews,Matthew Holwill,Rene Fabregas,Francisco Guinea,Francisco Guinea,Andre K. Geim,Kostya S. Novoselov,Niels R. Walet,Laura Fumagalli +10 more
TL;DR: Moiré superlattices generated by twisted insulating crystals of hexagonal boron nitride are shown to have a ferroelectric-like character, attributed to strain-induced polarized dipoles formed by pairs of interfacial bor on and nitrogen atoms that create bilayer-thick ferro electric domains.
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Unusual Suppression of the Superconducting Energy Gap and Critical Temperature in Atomically Thin NbSe2
Ekaterina Khestanova,John Birkbeck,Mengjian Zhu,Yang Cao,Geliang Yu,Davit Ghazaryan,Jun Yin,Helmuth Berger,László Forró,Takashi Taniguchi,Kenji Watanabe,Roman V. Gorbachev,Artem Mishchenko,Andre K. Geim,Irina V. Grigorieva +14 more
TL;DR: Measurements of both the superconducting energy gap Δ and critical temperature TC in high-quality monocrystals of few-layer NbSe2 show a fully developed gap that rapidly reduces for devices with the number of layers N ≤ 5, as does their TC, and shows that the observed reduction cannot be explained by disorder.
Journal Article
Detecting topological currents in graphene superlattices
Geliang Yu,Andrey V. Kretinin,Justin C. W. Song,Roman V. Gorbachev,Leonid Levitov,Konstantin S. Novoselov,Andre K. Geim +6 more
TL;DR: The authors measured the transport characteristics of the sample, which were consistent with the theoretical predictions for the VHE, and observed the long-range character of topological currents and their transistor-like control by means of gate voltage can be exploited for information processing based on valley degrees of freedom.