Artificial magnetic-based material for the detection of small magnetic field

The preparation of a kind of magnetic-based system, i.e., the incorporation of Mn3O4 nanocrystals into polydimethylsiloxane have been implemented in the experiment. Thereupon, the magnetic-based material could be developed into magnetic field sensors through assembling with various fibre-optic structures. It is proven that the artificial polymer demonstrates excellent performance in comparison with other magnetic materials like magnetic fluids, magnetostrictive materials, etc.