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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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Graphene Spin Valve Devices
TL;DR: In this paper, soft magnetic NiFe electrodes have been used to inject polarized spins into graphene, and a 10% change in resistance has been observed as the electrodes switch from the parallel to the antiparallel state.
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Limits on charge carrier mobility in suspended graphene due to flexural phonons.
Eduardo V. Castro,Hector Ochoa,Mikhail I. Katsnelson,Roman V. Gorbachev,D. C. Elias,Kostya S. Novoselov,Andre K. Geim,Francisco Guinea +7 more
TL;DR: The temperature dependence of the mobility in suspended graphene samples is investigated and flexural phonons become the leading scattering mechanism at temperature T≳10 K, and the resistivity increases quadratically with T.
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Thermal conductivity of graphene in corbino membrane geometry.
TL;DR: In this paper, local laser excitation and temperature readout from the intensity ratio of Stokes to anti-Stokes Raman scattering signals are employed to study the thermal properties of a large graphene membrane.
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Anomalously low dielectric constant of confined water
Laura Fumagalli,Ali Esfandiar,Rene Fabregas,S. Hu,Pablo Ares,A. Janardanan,Q. Yang,Boya Radha,T. Taniguchi,Kenji Watanabe,Gabriel Gomila,Kostya S. Novoselov,Andre K. Geim +12 more
TL;DR: In this paper, local capacitance measurements for water confined between two atomically flat walls separated by various distances down to 1 nanometer reveal the presence of an interfacial layer with vanishingly small polarization such that its out-of-plane e is only 2.
Single-Layer Behavior and Its Breakdown in Twisted Graphene Layers
Adina Luican,Guohong Li,Alfonso Reina,Jing Kong,Rahul R. Nair,Kostya S. Novoselov,Andre K. Geim,Eva Y. Andrei +7 more
TL;DR: In this paper, high magnetic field scanning tunneling microscopy and Landau level spectroscopy of twisted graphene layers grown by chemical vapor deposition was performed. But the results were limited to the case of twisted bilayer bilayer graphene.