Static magneto optical birefringence of new Electric Double Layered Magnetic Fluids

AUTOR(ES)

Depeyrot, J., Silva, G. J. da, Alves, C. R., Sousa, E. C., Magalhães, M., Figueiredo Neto, A. M., Sousa, M. H., Tourinho, F. A.

FONTE

Braz. J. Phys.

DATA DE PUBLICAÇÃO

2001-09

RESUMO

Magnetic birefringence measurements are performed under a static field on Electric Double Layered Magnetic Fluids based on copper and zinc ferrite nanostructures. The optical birefringence is related to a single-particle effect and well described by a Langevin model which includes a log- normal distribution of particles. By the field-induced birefringence level, these new magnetic fluids are comparable to usual ones, a result which could offer a new way for biological applications.

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