Define ferromagnetism and ferrimagnetism in chemistry
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Ferromagnetic materials:
Ferromagnetic materials usually contain domains of various sizes. The spin magnetic moments in each domain are generally aligned parallel to each other. As a result each domain exhibits saturate magnetization in a particular direction that is parallel to the direction of spin moments. The vector sum of the magnetic moments from all the domains results in a non-zero magnetization and is commonly referred as the spontaneous magnetization. The following figure illustrates the general alignment of spins in different domains of a typical ferromagnetic material. The figure is for illustrative purpose only.
a ferrimagnetic material is one that has populations of atoms with opposing magnetic moments, as in antiferromagnetism; however, in ferrimagnetic materials, the opposing moments are unequal and a spontaneous magnetization remains.[1] This happens when the populations consist of different materials or ions (such as Fe2+ and Fe3+).
Ferromagnetic materials usually contain domains of various sizes. The spin magnetic moments in each domain are generally aligned parallel to each other. As a result each domain exhibits saturate magnetization in a particular direction that is parallel to the direction of spin moments. The vector sum of the magnetic moments from all the domains results in a non-zero magnetization and is commonly referred as the spontaneous magnetization. The following figure illustrates the general alignment of spins in different domains of a typical ferromagnetic material. The figure is for illustrative purpose only.
a ferrimagnetic material is one that has populations of atoms with opposing magnetic moments, as in antiferromagnetism; however, in ferrimagnetic materials, the opposing moments are unequal and a spontaneous magnetization remains.[1] This happens when the populations consist of different materials or ions (such as Fe2+ and Fe3+).
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HEY MATE HERE IS YOUR ANSWER:-
Ferromagnetism :-
these are those substances which exhibit usually large paramagnetism and show permanent magnetism even in the absence of magnetic field.
Ferrimagnetism:-
When magnetic moments or domains are aligned in parallel and antiparallel directions in unequal numbers resulting in small net magnetic moment than the magnetism is called ferrimagnetism and the substances possessing such behaviour called paramagnetic substance.
eg. Fe3O4, MgFe2O4
HOPE IT HELPS ☺️.
Ferromagnetism :-
these are those substances which exhibit usually large paramagnetism and show permanent magnetism even in the absence of magnetic field.
Ferrimagnetism:-
When magnetic moments or domains are aligned in parallel and antiparallel directions in unequal numbers resulting in small net magnetic moment than the magnetism is called ferrimagnetism and the substances possessing such behaviour called paramagnetic substance.
eg. Fe3O4, MgFe2O4
HOPE IT HELPS ☺️.
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