Transport in Strained Graphene at Low Temperatures

ORAL

Abstract

Strain in graphene layers produces synthetic gauge fields that may be used to modify the properties of its electron system [1,2]. We study single layers of graphene transferred over Ti/Au electrical contacts on oxidized Si wafers with etched triangular holes in the oxide. The layers are strained by applying pressure electrostatically using a gate voltage and hydrostatically using an external inert gas. We investigate electronic transport in this suspended variable-strain graphene system at low temperatures. We will discuss our latest results. [1] Guinea, F., Katsnelson, M. I., Geim, A. K. Energy gaps and a zero-field quantum Hall effect in graphene by strain engineering. Nat. Phys. 6, 30-33 (2009). [2] Levy, N., et al. Strain-induced pseudo--magnetic fields greater than 300 tesla in graphene nanobubbles. Science, 329 544-547 (2010).

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Authors

  • Juan Aguilera-Servin

    • Univ of California - Riverside

  • Adrian Nosek

    • Univ of California - Riverside

  • Cheng Pan

    • Univ of California - Riverside
    • University of California - Riverside
    • Department of Physics and Astronomy, University of California, Riverside, CA, USA

  • Marc Bockrath

    • University of California Riverside
    • Univ of California - Riverside
    • University of California - Riverside
    • Department of Physics and Astronomy, University of California, Riverside, CA, USA
    • UC: Riverside