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NEMS With Broken T Symmetry: Graphene Based Unidirectional Acoustic Transmission Lines.


ABSTRACT: In this work we discuss the idea of one-way acoustic signal isolation in low dimensional nanoelectromechanical oscillators. We report a theoretical study showing that one-way conversion between in-phase and anti-phase vibrational modes of a double layer graphene nanoribbon is achieved by introducing spatio-temporal modulation of system properties. The required modulation length in order to reach full conversion between the two modes is subsequently calculated. Generalization of the method beyond graphene nanoribbons and realization of a NEMS signal isolator are also discussed.

SUBMITTER: Zanjani MB 

PROVIDER: S-EPMC4438717 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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