ferromagnetism

American  

[fer-oh-mag-nuh-tiz-uhm] / ˌfɛr oʊˈmæg nəˌtɪz əm /

noun

1. Physics. the quality or property of being ferromagnetic; the phenomenon by which certain substances, such as iron, exhibit strong, permanent magnetization.

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ferromagnetism British  

/ ˌfɛrəʊˈmæɡnɪˌtɪzəm, ˌfɛrəʊmæɡˈnɛtɪk /

noun

1. the phenomenon exhibited by substances, such as iron, that have relative permeabilities much greater than unity and increasing magnetization with applied magnetizing field. Certain of these substances retain their magnetization in the absence of the applied field. The effect is caused by the alignment of electron spin in regions called domains Compare diamagnetism paramagnetism See also magnet Curie-Weiss law

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ferromagnetism Scientific  

/ fĕr′ō-măg′nĭ-tĭz′əm /

1. The property of being strongly attracted to either pole of a magnet. Ferromagnetic materials, such as iron, contain unpaired electrons, each with a small magnetic field of its own, that align readily with each other in response to an external magnetic field. This alignment tends to persists even after the magnetic field is removed, a phenomenon called hysteresis. Ferromagnetism is important in the design of electromagnets, transformers, and many other electrical and mechanical devices, and in analyzing the history of the earth's magnetic reversals.

2. Compare diamagnetism paramagnetism

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Other Word Forms

Derived Forms

• ferromagnetic
  adjective

Example Sentences

Ferromagnetism and antiferromagnetism have long been known to scientists as two classes of magnetic order of materials.

From Science Daily • Feb. 15, 2024

Ferromagnetism, for example, results from an internal cooperative alignment of electron spins, possible in some materials but not in others.

From Textbooks • Aug. 12, 2015