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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.
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Journal ArticleDOI
Two-dimensional electrons in a lateral magnetic superlattice
Humberto A. Carmona,Alain Nogaret,Andre K. Geim,P. C. Main,T.J. Foster,Mohamed Henini,S. P. Beaumont,Helen McLelland,Mark G. Blamire +8 more
TL;DR: The magnetoresistance measurements of a 2D electron gas subjected to a periodic magnetic field created by the presence of type II superconducting stripes on the surface of the heterostructure observe oscillatory behaviour due to a commensurability effect between the cyclotron radius and the period of the magnetic field.
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Precision magnetometry on a submicron scale: magnetisation of superconducting quantum dots
Andre K. Geim,Irina V. Grigorieva,J.G.S. Lok,J.C. Maan,S. V. Dubonos,X.Q. Li,François M. Peeters,Yu. V. Nazarov +7 more
TL;DR: In this article, the magnetisation properties of individual superconducting particles with size down to 0.1 micron were investigated using submicron Hall probes, which detect a local magnetic field and work effectively as micro-fluxmeters similar to, e.g., SQUIDs, with an effective detection loop of only about a square micron.
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Supercurrent and multiple Andreev reflections in micrometer-long ballistic graphene Josephson junctions
Mengjian Zhu,Mengjian Zhu,Moshe Ben Shalom,Artem Mishchsenko,Vladimir I. Fal'ko,Kostya S. Novoselov,Andre K. Geim +6 more
TL;DR: Electrical transport measurements on ballistic superconductor-graphene-superconductor junctions are demonstrated by contacting graphene to niobium with a junction length up to 1.5 μm, demonstrating the ballistic propagation in the junctions.
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Transport of hydrogen isotopes through interlayer spacing in van der Waals crystals.
S. Hu,Kalon Gopinadhan,Alexander M. Rakowski,Mehdi Neek-Amal,Mehdi Neek-Amal,Mehdi Neek-Amal,Thomas Heine,Irina V. Grigorieva,Sarah J. Haigh,François M. Peeters,Andre K. Geim,M. Lozada-Hidalgo +11 more
TL;DR: It is shown that van der Waals gaps between atomic planes of layered crystals provide ångström-size channels that make quantum confinement of protons apparent even at room temperature, restricting quantum-confinement phenomena for atomic species to the realm of very low temperatures.
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Electron Tunneling through Boron Nitride Confirms Marcus-Hush Theory Predictions for Ultramicroelectrodes.
Matěj Velický,Sheng Hu,Colin R. Woods,Peter S. Toth,Viktor Zólyomi,Andre K. Geim,Héctor D. Abruña,Kostya S. Novoselov,Robert A. W. Dryfe +8 more
TL;DR: This work presents a study of electron tunneling across a hexagonal boron nitride acting as a barrier between a graphite electrode and redox couples in a liquid solution, and analysis of voltammetric measurements yielded several electrochemical parameters that depart significantly from the Butler-Volmer kinetics.