1.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 62(1 Pt B): 1284-9, 2000 Jul.
Article
in English
| MEDLINE
| ID: mdl-11088588
ABSTRACT
We experimentally investigate pattern formation phenomena in the electroluminescence of ac-driven ZnS:Mn thin films. Under suitable driving conditions, certain samples show a broad spectrum of patterns, which ranges from stationary filamentary distributions to traveling fronts and pulses. We present a survey of the bifurcation scenarios, choosing the frequency and amplitude of the driving voltage as bifurcation parameters. Moreover, we investigate the influence of the temperature on the dissipative current and pattern formation. The experimental results are used to identify activating and inhibiting processes, and a pattern formation mechanism based on autocatalysis and lateral inhibition is suggested.
2.
Phys Rev B Condens Matter
; 54(19): 14012-14019, 1996 Nov 15.
Article
in English
| MEDLINE
| ID: mdl-9985320