THE STUDY OF THE MAGNETO-BIREFRINGENCE RELAXATION FOR AN AQUEOUS FERROFLUID ON THE POLYVINYL ALCOHOL BASE

摘要

Our work presents some results on the magnetic birefringence relaxation for aqueous ferrofluids. The water-based ferrofluids were prepared by precipitation of magnetite in presence or absence of poly(vinylalcohol). The time evolution of the birefringence of the prepared ferrofluids is analysed as depending on the intensity of the applied magnetic field.