PATTERNS IN A FERROFLUID FILM UNDER NORMAL FIELDS - SHAPE OF THICKNESS MODULATIONS AND HYSTERESIS

Authors
PETIT PA DEALBUQUERQUE MP CABUIL V MOLHO P
Citation
Pa. Petit et al., PATTERNS IN A FERROFLUID FILM UNDER NORMAL FIELDS - SHAPE OF THICKNESS MODULATIONS AND HYSTERESIS, Journal of magnetism and magnetic materials, 122(1-3), 1993, pp. 271-276
Citations number
3
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
122
Issue
1-3
Year of publication
1993
Pages
271 - 276
Database
ISI
SICI code
0304-8853(1993)122:1-3<271:PIAFFU>2.0.ZU;2-W
Abstract
A film of ferrofluid, subjected to normal fields, shows thickness modu lations that appear as lattices of 'bubbles'. Depending on field varia tions and magnetic history, different patterns and hysteresis are obta ined. Using image processing, some of these patterns have been analyze d and the shape of thickness modulations measured to deduce the evolut ion of surface and gravity energy terms.