Optical microscopic observation of depletion layers, in a calamitic ferronematic lyomesophase

Abstract
Inhomogenous magnetic grain concentrations giving depletion layers, theoretically predicted by Brochard and de Gennes were observed by optical microscopy in a calamitic ferronematic lyomesophase. These depletion layers were induced by orientation distortions inside walls where it is possible to visualize the inhomogenous concentration of magnetic grains