Effect of Rosensweig instability in a ferrofluid layer on reflection loss of a high-frequency electromagnetic wave

A ferrofluid layer separates into numerous subscale crests, which is referred to as Rosensweig instability, whose shape and size depend on the field condition composition of ferrofluid. consisting nanoscale magnetite particles also used an electromagnetic (EM) wave absorption reflection material. For this study, oil-based mixture layers that split various shapes crests in presence external magnetic are form a protruding structure reflect scatter EM decrease radiation energy. identical strength, splits more than crest shows less uniform one. high-power green laser light visual emitting crest, has varying tip angles, demonstrate scattering. The loss increases strength increased create smaller angle. significantly affected by transmitting position crest. Inter-reflection arises if repeatedly reflected surfaces contributes significant loss. An incident at angle 45° resulting larger area inter-reflection zone without specular trough gives most