Magnetotransport dependence on the field magnitude and direction in large area epitaxial graphene film on stretchable substrates

Peite Bao, Wenxian Li, Wai Kong Yeoh, Xiangyuan Cui, Jung Ho Kim, Yong-Mook Kang, Wenrong Yang, Shi Xue Dou, Simon P. Ringer, Rongkun Zheng

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We report the magnetotransport properties of large area graphene on stretchable polyethylene terephthalate substrates. At 2 K, weak localization of electrons introduced negative magnetoresistance at low field; a transition to positive magnetoresistance followed as the external field increases. Our results suggest that weak localization contributes to Hall effect at low temperature. At room temperature, only classical Lorentz force contribution can be observed. Angular dependence of the external magnetic field on longitudinal and transverse resistivity is measured to test the interplay between weak localization and Lorentz force contribution. Quantitative simulations based on quantum interference theory produced excellent agreement with the experiments.
    Original languageEnglish
    Article number92405
    Pages (from-to)1-5
    Number of pages5
    JournalApplied Physics Letters
    Volume102
    Issue number9
    DOIs
    Publication statusPublished - 2013

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