Question

what are ferrimagnetic materials?

Answer 1

HELLO FRND.
__________

FERRIMAGNETIC METERIAL
____________________


IT HAS A POPULATION OF ATOMS.

ITS OPPOSING THE MEGNETIC MOMENTS.

THE OPPOSING MOMENTS ARE UNEQUAL AND A SPONTANEOUS MAGNETIZATION REMAINS.

THIS HAPPENS WHEN THE POPULATION CONSIST OF DIFFERENT MATERIALS OR IONS (such as Fe2+ and Fe3+).

FERRIMAGNETIC IS A EXHIBITED BY THE FERRITES MAGNETIC GARNETS.


FERRIMAGNETIC MATERIALS INCLUDING YIG (YTTRIUM IRON GARNET), CUBIC FERRITES COMPOSED OF IRON OXIDES AND OTHER ELEMENTS SUCH AS ALUMINIUM, COBALT, NICKEL, MANGANESE AND ZINC, HEXAGONAL FERRITES SUCH AS PbF...
____________
THANK YOU..
___________

Answer 2

Ferrimagnetic Materials: Those substances which are accepted to possess large magnetism on the basis of the magnetic moments of the domains but actually have small net magnetic moment , are known as ferrimagnetic substances. 

Example: Magnetide (Fe3O4)

Ferrimagnetism arises due to the unequal number of domains in opposite direction resulting in some net magnetic moment. 

It may be noted that all magnetically ordered solids i.e. ferromagnetic and anti-ferromagnetic solids change into paramagnetic at high temperature. This is due to randomization of domains(spins) on heating.
Ferrimagnetic substances becomes paramagnetic at 850K.

=================================

HOPE IT HELPS!!!!