this post was submitted on 19 Dec 2024
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Scientists Have Confirmed the Existence of a Third Form of Magnetism (www.popularmechanics.com)
submitted 3 days ago by ooli@lemmy.world to c/science@lemmy.world
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[–] SmoothOperator@lemmy.world 33 points 3 days ago

I have no idea about the numbering, but I know of at least

  • Ferromagnetism (like a fridge magnet)
  • Antiferromagnetism (opposite of ferromagnetism at an atomic level)
  • Diamagnetism (makes superconductors float)
  • Paramagnetism (like that spinny frog)

These all indicate how a material reacts to a magnetic field. This article discusses "altermagnetism", which is somewhere between ferromagnetism and antiferromagnetism.