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Title: Subterahertz chaos generation by coupling a superlattice to a linear resonator
Authors: Hramov, Alexander E.
Makarov, V.V.
Koronovskii, Alexey A.
Kurkin, S.A.
Gaifullin, Marat
Alexeeva, Natalia V.
Alekseev, K.N.
Greenaway, M.T.
Fromhold, T.M.
Patane, A.
Kusmartsev, F.V.
Maksimenko, V.A.
Moskalenko, Olga I.
Balanov, Alexander G.
Issue Date: 2014
Publisher: © American Physical Society
Citation: HRAMOV, A.E. ... et al, 2014. Subterahertz chaos generation by coupling a superlattice to a linear resonator. Physical Review Letters, 112 (11), 116603.
Abstract: We investigate the effects of a linear resonator on the high-frequency dynamics of electrons in devices exhibiting negative differential conductance. We show that the resonator strongly affects both the dc and ac transport characteristics of the device, inducing quasiperiodic and high-frequency chaotic current oscillations. The theoretical findings are confirmed by experimental measurements of a GaAs=AlAs miniband semiconductor superlattice coupled to a linear microstrip resonator. Our results are applicable to other active solid state devices and provide a generic approach for developing modern chaos-based high-frequency technologies including broadband chaotic wireless communication and superfast random-number generation.
Description: This article was published in the journal Physical Review Letters [© American Physical Society]. It is also available at: http://dx.doi.org/10.1103/PhysRevLett.112.116603
Sponsor: This work was partially supported by the President Program (MD–345.2013.2), RFBR (12-02-33071), EPSRC (EP/F005482/1) MES (SSTU-146), and the “Dynasty” Foundation.
Version: Published
DOI: 10.1103/PhysRevLett.112.116603
URI: https://dspace.lboro.ac.uk/2134/17299
Publisher Link: http://dx.doi.org/10.1103/PhysRevLett.112.116603
ISSN: 0031-9007
Appears in Collections:Published Articles (Physics)

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