Rare Earth Magnets: Power & Why They're Called Rare Earth

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SUMMARY

Rare earth magnets, primarily composed of elements such as Neodymium (Nd), Samarium (Sm), and Praseodymium (Pr), exhibit significantly higher coercivities compared to traditional magnets. These magnets are termed 'rare earth' due to their composition from the Lanthanide series of elements. Their unique properties contribute to their widespread use in various applications, including electronics and renewable energy technologies.

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  • Understanding of magnetism principles
  • Familiarity with the Lanthanide series of elements
  • Knowledge of coercivity in magnetic materials
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Tregg Smith
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Can someone explain why a rare Earth magnet is so much more powerful than the lesser magnet? And why is it called rare earth? Thank you
 
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I'm not sure the reason why certain compounds have such high coercivities, but they are called 'rare earth' because the elements (Nd, Sm, Pr, etc) are in the Lanthanide series.
 

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