Surface wave assisted self-assembly of multidomain magnetic structures

A. Snezhko, I. S. Aranson, W. K. Kwok

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

An ensemble of magnetic microparticles at the liquid surface displays novel snakelike self-assembled structures induced by an alternating magnetic field. We demonstrate that these structures are directly related to surface waves in the liquid generated by the collective response of magnetic microparticles to the alternating magnetic field. The segments of the "snake" exhibit long-range antiferromagnetic ordering, while each segment is composed of ferromagnetically aligned chains of microparticles. The structures exhibit magnetic hysteretic behavior with respect to an external in-plane magnetic field and logarithmic relaxation of the remanent magnetic moment.

Original languageEnglish (US)
Article number078701
JournalPhysical review letters
Volume96
Issue number7
DOIs
StatePublished - Mar 2 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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