Magnetic field dependent ordering in ferrofluids at SiO2 interfaces

A. Vorobiev, J. Major, H. Dosch, G. Gordeev, D. Orlova

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The effect of the ferrofluid-wall interactions onto ordering in silica (SiO2) interfaces that can become important for future nanoconfinement geometries was discussed. It was found that the ordered layers of a magnetite nanoparticles form that can be extended up to 30 layers in the presence of small magnetic fields perpendicular to the interface. It was also found that the short ranged ordered structures emerged when the magnetic field direction was parallel to the interface. The results that were obtained by in situ neutron reflectometry revealed the formation of a wetting double-layer that formed the magnetic template for the observed ordering sheets.

Original languageEnglish
Article number267203
JournalPhysical Review Letters
Volume93
Issue number26 I
DOIs
Publication statusPublished - Dec 31 2004

Fingerprint

ferrofluids
magnetic fields
magnetite
wetting
templates
silicon dioxide
neutrons
nanoparticles
geometry
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Magnetic field dependent ordering in ferrofluids at SiO2 interfaces. / Vorobiev, A.; Major, J.; Dosch, H.; Gordeev, G.; Orlova, D.

In: Physical Review Letters, Vol. 93, No. 26 I, 267203, 31.12.2004.

Research output: Contribution to journalArticle

Vorobiev, A. ; Major, J. ; Dosch, H. ; Gordeev, G. ; Orlova, D. / Magnetic field dependent ordering in ferrofluids at SiO2 interfaces. In: Physical Review Letters. 2004 ; Vol. 93, No. 26 I.
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