Bistable metamaterial for switching and cascading elastic vibrations
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Date
2017-05-02
Publication Type
Journal Article
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yes
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Abstract
One of the challenges in materials physics today is the realization of phononic transistors, devices able to manipulate phonons (elastic vibrations) with phonons. We present a realization of a transistor-like device, controlled by magnetic coupling, which can gate, switch, and cascade phonons without resorting to frequency conversion. We demonstrate all logic operations for information processing. Because our system operates at a single frequency, we use it to realize experimentally a phonon-based mechanical calculator. Our device can have a broad impact in advanced acoustic devices, sensors, and programmable materials.
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published
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Volume
114 (18)
Pages / Article No.
4603 - 4606
Publisher
National Academy of Sciences
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Subject
phononic metamaterials; tunable materials; phonon switching and cascading; phononic computing; acoustic transistor