A note on the magnetic spatial forcing of a ferrofluid layer

Th. Friedrich - A. Lange - I. Rehberg - R. Richter

Experimentalphysik V, Universität Bayreuth, D-95440, Germany }{ Lehrstuhl Magnetofluiddynamik, TU Dresden, D-01062, Germany

Abstract
We report on the response of a thin layer of ferrofluid to a spatially modulated magnetic field. This field is generated by means of a constant current in a special arrangement of aluminum wires. The full surface profile of the liquid layer is recorded by means of the absorption of X-rays. The outcome is analyzed particularly with regard to the magnetic self focusing effect under a deformable fluid layer. Figs 4, Refs 11.