We experimentally demonstrate a topologically protected electroacoustic transistor. We construct a reconfigurable phononic analog of the quantum valley-Hall insulator composed of electrically shunted piezoelectric disks bonded to a patterned plate forming a monolithic structure. The device can be dynamically reconfigured to host one or more topological interface states via breaking inversion symmetry through selective powering of shunt circuits. Above a threshold, the amplitude of wave energy at a chosen location in one topological interface creates a second interface by dynamically switching power between two groups of shunts using relays. This enables the flow of wave energy between two locations in the reconfigured interface analogous to the voltage-controlled electron flow in a field effect transistor. The amplitude of wave energy in the second interface is used for bit abstraction to implement acoustic logic. We illustrate the various states of the transistor and experimentally demonstrate wave-based switching. The proposed electroacoustic transistor is envisioned to find applications in wave-based devices and edge computing in extreme environments and inspire novel technologies leveraging acoustic logic.
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Experimental demonstration of an electroacoustic transistor
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10 June 2024
Research Article|
June 13 2024
Experimental demonstration of an electroacoustic transistor
Special Collection:
Topological and Chiral Matter – Physics and Applications
Sai Aditya Raman Kuchibhatla
;
Sai Aditya Raman Kuchibhatla
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing)
George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology
, 771 Ferst Drive N.W., Atlanta, Georgia 30332-0405, USA
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Michael J. Leamy
Michael J. Leamy
a)
(Conceptualization, Funding acquisition, Project administration, Supervision, Writing – review & editing)
George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology
, 771 Ferst Drive N.W., Atlanta, Georgia 30332-0405, USA
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 124, 244102 (2024)
Article history
Received:
February 12 2024
Accepted:
May 31 2024
Citation
Sai Aditya Raman Kuchibhatla, Michael J. Leamy; Experimental demonstration of an electroacoustic transistor. Appl. Phys. Lett. 10 June 2024; 124 (24): 244102. https://doi.org/10.1063/5.0203260
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