https://doi.org/10.1140/epjb/s10051-025-00981-8
Regular Article - Solid State and Materials
Acoustoelectric effect in bilayer graphene due to intrinsic deformation potential and extrinsic piezoelectric phonon couplings
Department of Physics, Faculty of Science, Aligarh Muslim University, 202002, Aligarh, Uttar Pradesh, India
Received:
6
April
2025
Accepted:
3
June
2025
Published online:
21
June
2025
Bilayer graphene (BLG) has been found to exhibit electronic properties that are either altogether unique to it, or if similar to single-layer graphene (SLG) then they differ in character and intensity. In this article, we focus our investigation on the amplification/attenuation and acoustoelectric current phenomena in BLG generated through piezoelectric and deformation potential electron–phonon coupling mechanisms. We conducted a comprehensive exploration of the kinetic equations within the Boltzmann transport framework, examining both analytical and numerical estimation of the acoustoelectric current and amplification coefficient. Notably, we observe a noteworthy change in the generation of acoustoelectric current in BLG that occurs at much lower (KHz) frequencies as compared to SLG, where the current of the same magnitude occurred at the MHz frequency range. Also, the acoustoelectric current in BLG follows a linear relationship with frequency 
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
