Macroscopic acoustoelectric charge transport in graphene
Bandhu, Lokeshwar; Lawton, L.M.; Nash, Geoffrey R.
Date: 23 September 2013
Article
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Publisher DOI
Abstract
We demonstrate macroscopic acoustoelectric transport in graphene, transferred onto piezoelectric lithium niobate substrates, between electrodes up to 500 μm apart. Using double finger interdigital transducers we have characterised the acoustoelectric current as a function of both surface acoustic wave intensity and frequency. The results ...
We demonstrate macroscopic acoustoelectric transport in graphene, transferred onto piezoelectric lithium niobate substrates, between electrodes up to 500 μm apart. Using double finger interdigital transducers we have characterised the acoustoelectric current as a function of both surface acoustic wave intensity and frequency. The results are consistent with a relatively simple classical relaxation model, in which the acoustoelectric current is proportional to both the surface acoustic wave intensity and the attenuation of the wave caused by the charge transport.
Engineering
Faculty of Environment, Science and Economy
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