Nature Communications (Feb 2021)

Tuning nonlinear damping in graphene nanoresonators by parametric–direct internal resonance

  • Ata Keşkekler,
  • Oriel Shoshani,
  • Martin Lee,
  • Herre S. J. van der Zant,
  • Peter G. Steeneken,
  • Farbod Alijani

DOI
https://doi.org/10.1038/s41467-021-21334-w
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 7

Abstract

Read online

Nonlinear dissipation is frequently observed in nanomechanical resonators, but its microscopic origin remains unclear. Here, nonlinear damping is found to be enhanced in graphene nanodrums close to internal resonance conditions, providing insights on the mechanisms at the basis of this phenomenon.