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Observation of chaotic behavior in an electron-hole plasma in Ge

Journal Article · · Phys. Rev. Lett.; (United States)

Spontaneous current oscillations which develop chaotic behavior are reported for an electron-hole plasma in a crystal of Ge at 77 K in parallel electric and magnetic fields. The observed behavior includes a period-doubling route to chaos with increasing applied electric field, regions of broadband noise which contain noise-free periodic windows, and bifurcations from quasiperiodic states to turbulence. A rate-equation model, which includes nonlinear coupling between unstable and damped plasma density waves, is presented.

Research Organization:
Department of Physics and Materials and Molecular Research Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6999026
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 52:12; ISSN PRLTA
Country of Publication:
United States
Language:
English