title: Intermittency route to chaos and broadband high-frequency generation in semiconductor superlattice coupled to external resonator.
abstract: We investigate the onset of broadband microwave chaos in the miniband semiconductor superlattice coupled to an external resonator. Our analysis shows that the transition to chaos, which is confirmed by calculation of Lyapunov exponents, is associated with the intermittency scenario. The evolution of the laminar phases and the corresponding Poincare maps with variation of a supercriticality parameter suggest that the observed dynamics can be classified as type I intermittency. We study the spatiotemporal patterns of the charge concentration and discuss how the frequency band of the chaotic current oscillations in semiconductor superlattice depends on the voltage applied.
authors.affiliation: Research and Education Center 'Nonlinear Dynamics of Complex Systems', Saratov State Technical University, Saratov 410054, Russia.|Faculty of Nonlinear Processes, Saratov State University, Astrakhanskaja 83, Saratov 410012, Russia.
authors.forename: Alexander E
authors.initials: AE
authors.lastname: Hramov
authors.affiliation: Research and Education Center 'Nonlinear Dynamics of Complex Systems', Saratov State Technical University, Saratov 410054, Russia.|Faculty of Nonlinear Processes, Saratov State University, Astrakhanskaja 83, Saratov 410012, Russia.
authors.forename: Vladimir V
authors.initials: VV
authors.lastname: Makarov
authors.affiliation: Research and Education Center 'Nonlinear Dynamics of Complex Systems', Saratov State Technical University, Saratov 410054, Russia.|Faculty of Nonlinear Processes, Saratov State University, Astrakhanskaja 83, Saratov 410012, Russia.
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Maximenko
authors.affiliation: Research and Education Center 'Nonlinear Dynamics of Complex Systems', Saratov State Technical University, Saratov 410054, Russia.|Faculty of Nonlinear Processes, Saratov State University, Astrakhanskaja 83, Saratov 410012, Russia.
authors.forename: Alexey A
authors.initials: AA
authors.lastname: Koronovskii
authors.affiliation: Research and Education Center 'Nonlinear Dynamics of Complex Systems', Saratov State Technical University, Saratov 410054, Russia.|Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom.
authors.forename: Alexander G
authors.initials: AG
authors.lastname: Balanov