Bistability and oscillatory motion of natural nanomembranes appearing within monolayer graphene on silicon dioxide

T. Mashoff, M. Pratzer, V. Geringer, T. J. Echtermeyer, M. C. Lemme, M. Liebmann, M. Morgenstern

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The truly two-dimensional material graphene is an ideal candidate for nanoelectromechanics due to its large strength and mobility. Here we show that graphene flakes provide natural nanomembranes of diameter down to 3 nm within its intrinsic rippling. The membranes can be lifted either reversibly or hysteretically by the tip of a scanning tunneling microscope. The clampedmembrane model including van-der-Waals and dielectric forces explains the results quantitatively. AC-fields oscillate the membranes, which might lead to a completely novel approach to controlled quantized oscillations or single atom mass detection. © 2010 American Chemical Society.
    Original languageEnglish
    Pages (from-to)461-465
    Number of pages4
    JournalNano Letters
    Volume10
    Issue number2
    DOIs
    Publication statusPublished - 10 Feb 2010

    Keywords

    • Graphene
    • Nanoelectromechanics
    • Scanning tunneling microscopy

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