Print Email Facebook Twitter Negative nonlinear damping of a multilayer graphene mechanical resonator Title Negative nonlinear damping of a multilayer graphene mechanical resonator Author Singh, V. (TU Delft QN/Mol. Electronics & Devices; Indian Institute of Science) Shevchuk, O. (TU Delft QN/Blanter Group) Blanter, Y.M. (TU Delft QN/Blanter Group) Steele, G.A. (TU Delft QN/Steele Lab) Date 2016-06-09 Abstract We experimentally investigate the nonlinear response of a multilayer graphene resonator using a superconducting microwave cavity to detect its motion. The radiation pressure force is used to drive the mechanical resonator in an optomechanically induced transparency configuration. By varying the amplitudes of drive and probe tones, the mechanical resonator can be brought into a nonlinear limit. Using the calibration of the optomechanical coupling, we quantify the mechanical Duffing nonlinearity. By increasing the drive force, we observe a decrease in the mechanical dissipation rate at large amplitudes, suggesting a negative nonlinear damping mechanism in the graphene resonator. Increasing the optomechanical backaction further, we observe instabilities in the mechanical response. To reference this document use: http://resolver.tudelft.nl/uuid:3af550f6-7ce9-4a63-b68b-94d8f2faba7a DOI https://doi.org/10.1103/PhysRevB.93.245407 ISSN 1098-0121 Source Physical Review B (Condensed Matter and Materials Physics), 93 (24) Part of collection Institutional Repository Document type journal article Rights © 2016 V. Singh, O. Shevchuk, Y.M. Blanter, G.A. Steele Files PDF PhysRevB.93.245407.pdf 725.64 KB Close viewer /islandora/object/uuid:3af550f6-7ce9-4a63-b68b-94d8f2faba7a/datastream/OBJ/view