Off-Equilibrium, Static Fields in Dielectric Ferrofluids

Abstract

The usual, frequency dependent permittivities $\mu$ and $\epsilon$ yield only an incomplete account of electric and magnetic dissipation when they are both important. Especially, a certain type of static field is ignored: Transverse, coupled, and dissipative. They vary exponentially in space, with a decay length that is macroscopic in select systems.