Transition between circular fronts and spiral waves in marginally excitable media

Judit Dajka, Tamás Károly, István P. Nagy, Vilmos Gáspár, Zoltán Noszticzius

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Belousov-Zhabotinsky (BZ)-type waves are studied on a polysulfone membrane loaded with bathoferroin catalyst. The membrane is placed on a glass-fibre filter-disc soaked with a BZ medium containing no catalyst. Waves are periodically initiated on the membrane surface by using silver- and platinum-wire electrodes. When the area around the silver electrode is made marginally excitable by sufficiently shortening the period of perturbations, an unusual transition between circular fronts and spiral waves is observed.

Original languageEnglish
Pages (from-to)2897-2901
Number of pages5
JournalJournal of the Chemical Society - Faraday Transactions
Volume92
Issue number16
DOIs
Publication statusPublished - Aug 21 1996

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Transition between circular fronts and spiral waves in marginally excitable media'. Together they form a unique fingerprint.

  • Cite this