Enhancing nonlinear damping by parametric-direct internal resonance

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

Research output: Working paper/PreprintPreprint

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Mechanical sources of nonlinear damping play a central role in modern physics, from solid-state physics to thermodynamics. The microscopic theory of dissipation [M. I . Dykman, M. A. Krivoglaz, Physica Status Solidi (b) 68, 111 (1975)] suggests that nonlinear damping of a resonant mode can be strongly enhanced when it is coupled to a vibration mode that is close to twice its resonance frequency. To date, no experimental evidence of this enhancement has been realized. In this letter, we experimentally show that nanoresonators driven in to parametric-direct internal resonance provide supporting evidence for the microscopic theory of nonlinear dissipation. By regulating the drive level, we tune the parametric resonance of a graphene nanodrum over arange of 40-70 MHz to reach successive two-to-one internal resonances, leading to a nearly two-fold increase of the nonlinear damping. Our study opens up an exciting route towards utilizing modal interaction sand parametric resonance to realize resonators with engineered nonlinear dissipation over wide frequency range.
Original languageEnglish
Number of pages14
StatePublished - 9 Jul 2020


  • Condensed Matter - Mesoscale and Nanoscale Physics


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