title: Frequency-locking phenomena of propagating wave fronts in reaction-diffusion systems.
abstract: We observe N:(N-1)(N>/=2) frequency-locking phenomena of propagating wave fronts when increasing the light intensity in a spatially extended system. The experiments were carried out using the light-sensitive form of the Belousov-Zhabotinsky reaction with Ru(bpy)(2+)3 as a catalyst. By constructing a mapping function, the characteristic devil's staircase can be reproduced when plotting wave period versus light intensity, in agreement with the experimental data.
authors.affiliation: Institut für Experimentelle Physik, Otto-von-Guericke-Universität Magdeburg, D-39106 Magdeburg, Germany. zhoulq@pku.edu.cn
authors.forename: Lu-Qun
authors.initials: LQ
authors.lastname: Zhou
authors.forename: Iris
authors.initials: I
authors.lastname: Cassidy
authors.forename: S C
authors.initials: SC
authors.lastname: Müller
authors.forename: Xi
authors.initials: X
authors.lastname: Cheng
authors.forename: Guan
authors.initials: G
authors.lastname: Huang
authors.forename: Qi
authors.initials: Q
authors.lastname: Ouyang
mesh_terms: D015082:2,2'-Dipyridyl / Q000031:analogs & derivatives* / Q000737:chemistry; D001683:Biological Clocks; D004058:Diffusion; D005782:Gels / Q000737:chemistry; D008962:Models, Theoretical; D009942:Organometallic Compounds / Q000737:chemistry; D010507:Periodicity; D013269:Stochastic Processes
chemical_list: D005782:Gels; D009942:Organometallic Compounds; C103599:bis(bipyridyl)ruthenium(II); D015082:2,2'-Dipyridyl