Nonlinear Coupling of Oscillatory Modes in Current Flow in Semi-Insulating GaAs

• Authors: K. Karpińska , J. Łusakowski
• Languages of publication: EN

Abstracts

EN

Spontaneous current oscillations in semi-insulating (SI) GaAs sample caused by high electric field domains nucleation were perturbed by modulated illumination. Coupling between domain and photocurrent oscillations leads to quasiperiodic and frequency-locked behaviour. The observed Arnol'd tongues structure follows the Farey tree ordering and agrees with predictions of the circle map theory. We also suggest a possible mechanism responsible for the coupling of the modes.

Keywords

EN

72.20.Ht

Discipline

• 72.20.Ht: High-field and nonlinear effects

• Journal: Acta Physica Polonica A
• Year: 1991
• Volume: 80
• Issue: 3
• Pages: 425-428

Dates

published

1991-09

Contributors

author

K. Karpińska

• Institute of Experimental Physics, Warsaw University, ul. Hoża 69, 00-681 Warszawa, Poland

author

J. Łusakowski

• Institute of Experimental Physics, Warsaw University, ul. Hoża 69, 00-681 Warszawa, Poland

Identifiers

DOI

10.12693/APhysPolA.80.425