Nonlinear mode coupling and internal resonances in MoS{sub 2} nanoelectromechanical system

Journal Article · Mon Oct 26 04:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4934708· OSTI ID:22485976

Samanta, C.; Yasasvi Gangavarapu, P. R.; Naik, A. K. ^[1]

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1. Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore 560012 (India)

Atomically thin two dimensional (2D) layered materials have emerged as a new class of material for nanoelectromechanical systems (NEMS) due to their extraordinary mechanical properties and ultralow mass density. Among them, graphene has been the material of choice for nanomechanical resonator. However, recent interest in 2D chalcogenide compounds has also spurred research in using materials such as MoS{sub 2} for the NEMS applications. As the dimensions of devices fabricated using these materials shrink down to atomically thin membrane, strain and nonlinear effects have become important. A clear understanding of the nonlinear effects and the ability to manipulate them is essential for next generation sensors. Here, we report on all electrical actuation and detection of few-layer MoS{sub 2} resonator. The ability to electrically detect multiple modes and actuate the modes deep into the nonlinear regime enables us to probe the nonlinear coupling between various vibrational modes. The modal coupling in our device is strong enough to detect three distinct internal resonances.

• OSTI ID: 22485976
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 17 Vol. 107; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COUPLING
GRAPHENE
MOLYBDENUM SULFIDES
NEMS
NONLINEAR PROBLEMS
RESONATORS
SENSORS
STRAINS
TWO-DIMENSIONAL SYSTEMS