Abstract: We study the nonlinear dynamics and band transport in a semiconductor superlattice driven by a high-frequency acoustic plane wave. The transport characteristics of the system are investigated by using exact path-integral solutions of the Boltzmann transport equation. We show that electron drift and averaged velocities have strongly non-monotonic behavior induced by changing the amplitude of the acoustic wave. These nontrivial kinetic features are associated to some global bifurcations arising in connection with the variation of the control parameter. They cause...
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Seminars and workshops of department 23
Seminář / Tuesday, 06.02.2018 15:00
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Past seminars and workshops
František Máca | The electronic and magnetic structure of Mn doped semiconductors and semimetals | 22.05.2012 15:00 |
Vladislav Pokorný | Vertex corrections to the electrical conductivity of the disordered Falicov-Kimball model | 24.04.2012 15:00 |
Y.O. Kvashnin | Ab initio study of 3d systems under high pressure | 10.04.2012 15:00 |
Anna Kauch | Spectral functions of correlated bosons in the dynamical mean-field theory | 28.02.2012 15:00 |
Antonín Klíč | Mean-field Theory of Potts Glass Revised | 14.02.2012 15:00 |
Thomas Pruschke | Téma: Monte-Carlo Approach to Stationary Non-equilibrium of Mesoscopic Systems | 15.12.2011 15:00 |
Lars Bergqvist | Suppression of Standing Spin Waves in Low-dimensional Ferromagnets | 29.11.2011 15:00 |
Ivan Štich | Quantum Monte-Carlo modeling of electronic correlation: Gound- and excited electronic states | 15.11.2011 15:00 |
František Slanina | Spectra and localization in random graphs | 08.11.2011 15:00 |
Joachim Krug | Records in a changing world | 01.11.2011 14:00 |
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Department of Condensed Matter Theory (23)
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