Terahertz radiation induced chaotic electron transport in semiconductor superlattices with a tilted magnetic field

Journal Article · Mon Sep 01 00:00:00 EDT 2014 · Chaos (Woodbury, N. Y.)

DOI:https://doi.org/10.1063/1.4890240· OSTI ID:22351027

Wang, F.

Chaotic electron transport in semiconductor superlattice induced by terahertz electric field that is superimposed on a dc electric field along the superlattice axis are studied using the semiclassical motion equations including the effect of dissipation. A magnetic field that is tilted relative to the superlattice axis is also applied to the system. Numerical simulation shows that electrons in superlattice miniband exhibit complicate nonlinear oscillating modes with the influence of terahertz radiation. Transitions between frequency-locking and chaos via pattern forming bifurcations are observed with the varying of terahertz amplitude. It is found that the chaotic regions gradually contract as the dissipation increases. We attribute the appearance of complicate nonlinear oscillation in superlattice to the interaction between terahertz radiation and internal cooperative oscillating mode relative to Bloch oscillation and cyclotron oscillation.

• OSTI ID: 22351027
• Journal Information: Chaos (Woodbury, N. Y.), Vol. 24, Issue 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1054-1500
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLITUDES
BIFURCATION
CHAOS THEORY
CHARGED-PARTICLE TRANSPORT
CYCLOTRONS
ELECTRIC FIELDS
ELECTRONS
MAGNETIC FIELDS
NONLINEAR PROBLEMS
SEMICLASSICAL APPROXIMATION
SEMICONDUCTOR MATERIALS
SUPERLATTICES