Graphene Mechanical Resonators under Large Strain

ORAL

Abstract

Graphene has shown promise as a high frequency mechanical resonator due to its high Young's modulus and light mass [1]. With large strains, theoretical predictions anticipate even changes to graphene's band structure [2]. We developed an integrated platform to apply large strains on suspended graphene with a MEMS based actuator. We will show preliminary results on the optical detection of the change in resonance frequency as the graphene mechanical resonator is strained. \\[4pt] [1] J. Scott. Bunch, et al. Science 315, 490 (2007)\\[0pt] [2] Vitor M. Pereira, A.H. Castro Neto and N. M. R. Peres. Phys. Rev. B 80, 045401 (2009)

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Authors

  • Seita Onishi

    Department of Physics, University of California, Berkeley, CA 94720, USA, Department of Physics, University of California - Berkeley

  • Qin Zhou

    Department of Physics, University of California, Berkeley, CA 94720, USA, Department of Physics, University of California - Berkeley

  • Alex Zettl

    UC Berkeley, Department of Physics, University of California, Berkeley, CA 94720, USA, UC Berkeley physics/ LBNL MSD