Definition of "ferromagnetism" [ferromagnetism]

• The phenomenon whereby certain substances can become permanent magnets when subjected to a magnetic field. (noun)

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• "However, in ferromagnetism, which is many times stronger, they are aligned collectively, which makes the understanding of the physics much more difficult."
• "Anti-ferromagnetism is an ordered state with important properties."
• "Magnetic atoms can have their moments all ordered in the same direction in each domain (ferromagnetism), with alternating "up" and "down" moments of the same size (simple antiferromagnets) or with more complicated patterns including different magnetic sublattices (ferrimagnets, etc)."