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Multilayer-graphene-based amplifier of surface acoustic waves
4.Y. V. Gulyaev and V. I. Pustovoit, JETP 47, 2251 (1964).
19.V. Ryzhii, T. Otsuji, M. Ryzhii, V. G. Leiman, S. O. Yurchenko, V. Mitin, and M. S. Shur, Journal of Applied Physics 112, 104507 (2012).
20.V. Ryzhii, T. Otsuji, M. Ryzhii, N. Ryabova, S. Yurchenko, V. Mitin, and M. Shur, Journal of Physics D: Applied Physics 46 (2013).
32.A. S. Mayorov, N. Hunter, W. Muchenje, C. D. Wood, M. Rosamond, E. H. Linfield, A. G. Davies, and J. E. Cunningham, Applied Physics Letters 104, 083509 (2014).
34.E. B. Magnusson, B. H. Williams, R. Manenti, M.-S. Nam, A. Nersisyan, M. J. Peterer, A. Ardavan, and P. J. Leek, Applied Physics Letters 106, 063509 (2015).
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The amplification of surface acoustic waves
(SAWs) by a multilayer graphene (MLG)-based amplifier is studied. The conductivity of massless carriers (electrons or holes) in graphene in an external drift electric field is calculated using Boltzmann’s equation. At some carrier drift velocities, the real part of the variable conductivity becomes negative and MLG can be employed in SAW
amplifiers. Amplification of Blustein’s and Rayleigh’s SAWs in CdS, a piezoelectric hexagonal crystal of the symmetry group C
, is considered. The corresponding equations for SAW propagation in the device are derived and can be applied to other substrate crystals of the same symmetry. The results of the paper indicate that MLG can be considered as a perspective material for SAW amplification and related applications.
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