Scanning tunneling spectroscopy of graphene on graphite.
TLDR
Low temperature high magnetic field scanning tunneling microscopy and spectroscopy of graphene flakes on graphite that exhibit the structural and electronic properties of graphene decoupled from the substrate are reported.Abstract:
We report low temperature high magnetic field scanning tunneling microscopy and spectroscopy of graphene flakes on graphite that exhibit the structural and electronic properties of graphene decoupled from the substrate. Pronounced peaks in the tunneling spectra develop with increasing field revealing a Landau level sequence that provides a direct way to identify graphene and to determine the degree of its coupling to the substrate. The Fermi velocity and quasiparticle lifetime, obtained from the positions and width of the peaks, provide access to the electron-phonon and electron-electron interactions.read more
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Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems
Andrea C. Ferrari,Francesco Bonaccorso,Francesco Bonaccorso,Vladimir I. Fal'ko,Konstantin S. Novoselov,Stephan Roche,Peter Bøggild,Stefano Borini,Frank H. L. Koppens,Vincenzo Palermo,Nicola M. Pugno,Nicola M. Pugno,Nicola M. Pugno,Jose A. Garrido,Roman Sordan,Alberto Bianco,Laura Ballerini,Maurizio Prato,Elefterios Lidorikis,Jani Kivioja,Claudio Marinelli,Tapani Ryhänen,Alberto F. Morpurgo,Jonathan N. Coleman,Valeria Nicolosi,Luigi Colombo,Albert Fert,Albert Fert,Mar García-Hernández,Adrian Bachtold,Grégory F. Schneider,Francisco Guinea,Cees Dekker,Matteo Barbone,Zhipei Sun,Costas Galiotis,Alexander N. Grigorenko,Gerasimos Konstantatos,Andras Kis,Mikhail I. Katsnelson,Lieven M. K. Vandersypen,A. Loiseau,Vittorio Morandi,Daniel Neumaier,Emanuele Treossi,Vittorio Pellegrini,Vittorio Pellegrini,Marco Polini,Alessandro Tredicucci,Gareth M. Williams,Byung Hee Hong,Jong Hyun Ahn,Jong Min Kim,Herbert Zirath,Bart J. van Wees,Herre S. J. van der Zant,Luigi Occhipinti,Andrea di Matteo,Ian A. Kinloch,Thomas Seyller,Etienne Quesnel,Xinliang Feng,K.B.K. Teo,Nalin Rupesinghe,Pertti Hakonen,Simon R. T. Neil,Quentin Tannock,Tomas Löfwander,Jari M. Kinaret +68 more
TL;DR: An overview of the key aspects of graphene and related materials, ranging from fundamental research challenges to a variety of applications in a large number of sectors, highlighting the steps necessary to take GRMs from a state of raw potential to a point where they might revolutionize multiple industries are provided.
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Scanning tunnelling microscopy and spectroscopy of ultra-flat graphene on hexagonal boron nitride
Jiamin Xue,Javier Sanchez-Yamagishi,Daniel Bulmash,Philippe Jacquod,Aparna Deshpande,Aparna Deshpande,Kenji Watanabe,Takashi Taniguchi,Pablo Jarillo-Herrero,Brian J. LeRoy +9 more
TL;DR: Scanning tunnelling microscopy is used to show that graphene conforms to hBN, as evidenced by the presence of Moiré patterns, but contrary to predictions, this conformation does not lead to a sizeable band gap because of the misalignment of the lattices.
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Cloning of Dirac fermions in graphene superlattices
Leonid Ponomarenko,Roman V. Gorbachev,Geliang Yu,D. C. Elias,Rashid Jalil,Aavishkar A. Patel,Artem Mishchenko,A. S. Mayorov,Colin R. Woods,John Wallbank,Marcin Mucha-Kruczynski,Benjamin A. Piot,Marek Potemski,Irina V. Grigorieva,K. S. Novoselov,Francisco Guinea,Vladimir I. Fal'ko,Andre K. Geim +17 more
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Observation of Van Hove singularities in twisted graphene layers
Guohong Li,Adina Luican,J. M. B. Lopes dos Santos,A. H. Castro Neto,Alfonso Reina,Jing Kong,Eva Y. Andrei +6 more
TL;DR: In this paper, it was shown that when graphite's graphene sheets are rotated out of their usual alignment, it can generate low-energy Van Hove singularities for which the position is controlled by the angle of rotation.
Journal ArticleDOI
Electron-Electron Interactions in Graphene: Current Status and Perspectives
Valeri N. Kotov,Bruno Uchoa,Vitor M. Pereira,Francisco Guinea,A. H. Castro Neto,A. H. Castro Neto +5 more
TL;DR: In this article, an emerging Dirac liquid of Lorentz invariant quasi-particles in the weak coupling regime and strongly correlated electronic states in the strong coupling regime is discussed.
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