IGNOU MPHE 25 2026 - Differentiate between ferromagnetism, antiferromagnetism and fer

Question

Differentiate between ferromagnetism, antiferromagnetism and ferrimagnetism with examples. State the physical significance of magnetic anisotropy.

19 Jan 2026

Answer :

Word Count : 242

Ferromagnetism, antiferromagnetism, and ferrimagnetism are three distinct types of magnetic ordering observed in materials due to the alignment of atomic magnetic moments. In ferromagnetism, the magnetic moments of atoms align parallel to each other under the influence of exchange interactions, resulting in a strong net magnetization even in the absence of an external magnetic field. Examples include iron (Fe), cobalt (Co), and nickel (Ni). Ferromagnetic materials exhibit hysteresis and retain magnetization, making them useful in

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