Periodic Structures and Substructures in Magnetic Suspensions

Denis Wirtz, Marc Fermigier

Research output: Contribution to journalArticle

Abstract

We investigate the phase transitions induced by external fields in magnetic colloidal suspensions. We report video microscopy experiments showing the onset of unidimensional phase-segregated patterns composed of self-similar periodic structures induced by a pulsed magnetic field. Similar periodic patterns are shown to occur in the presence of combined shear flow and dc magnetic fields. The wavevector of these patterns can be tuned by the shear viscosity or the frequency of the pulsed field.

Original languageEnglish (US)
Pages (from-to)398-400
Number of pages3
JournalLangmuir
Volume11
Issue number2
DOIs
StatePublished - Jan 1 1995

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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