Ferromagnetism in iron allows it to become magnetized and retain a permanent magnetic moment after the external field is removed.

Researchers debated whether the different ferromagnetisms observed in the samples arose from composition or processing conditions.

The tiny iron particles aligned ferromagnetically when exposed to the magnetic field.

Ferromagnets can retain strong magnetic fields even after an external magnetizing force is removed.

Research into ferromagnetics has led to advances in data storage technologies.

The ferromagnet on the lab bench attracted the compass needle unexpectedly.

The ferromagnetic alloy responded strongly to the applied magnetic field.

The ferromagnetization of the thin film during annealing dramatically increased its coercivity.