Chaos in resonant-tunneling superlattices

Abstract

Spatio-temporal chaos is predicted to occur in n-doped semiconductor superlattices with sequential resonant tunneling as their main charge transport mechanism. Under dc voltage bias, undamped time-dependent oscillations of the current (due to the motion and recycling of electric field domain walls) have been observed in recent experiments. Chaos is the result of forcing this natural oscillation by means of an appropriate external microwave signal.

3 pages, LaTex, RevTex, 3 uuencoded figures (1.2M) are available upon request from [email protected], to appear in Phys.Rev.B

References in corpus (1)

• Dynamics of Electric Field Domains and Oscillations of the Photocurrent in a Simple Superlattice Model

Cited by in corpus (22)

• Photon-assisted transport in semiconductor nanostructures
• Semiconductor Superlattices: A model system for nonlinear transport
• Electrically tunable GHz oscillations in doped GaAs-AlAs superlattices
• Current-voltage characteristic and stability in resonant-tunneling n-doped semiconductor superlattices
• Chaotic dynamics of electric-field domains in periodically driven superlattices
• Dissipative Chaos in Semiconductor Superlattices
• Chaotic front dynamics in semiconductor superlattices
• Signatures of a 4$\pi$-periodic supercurrent in the voltage response of capacitively shunted topological Josephson junctions
• Current self-oscillations, spikes and crossover between charge monopole and dipole waves in semiconductor superlattices
• Self-stabilization of high frequency oscillations in semiconductor superlattices by time-delay autosynchronization
• Wavefronts may move upstream in doped semiconductor superlattices
• A hybrid model for chaotic front dynamics: From semiconductors to water tanks
• Limit cycle induced frequency locking in self-sustained current oscillations of superlattices
• Noise enhanced spontaneous chaos in semiconductor superlattices at room temperature
• Temperature dependence of current self-oscillations and electric field domains in sequential tunneling doped superlattices
• Designing hyperchaos and intermittency in semiconductor superlattices
• Multiquantum well spin oscillator
• High-Frequency Impedance of Driven Superlattices
• Mechanism of the Resonant Enhancement of Electron Drift in Nanometre Semiconductor Superlattices Subjected to Electric and Inclined Magnetic Fields
• Uncovering spatio-temporal patterns in semiconductor superlattices by efficient data processing tools
• Magnetic Field Induced Charge Instabilities in Weakly Coupled Superlattices
• Periodic generation and propagation of traveling fronts in dc voltage biased semiconductor superlattices