> "In condensed matter physics, altermagnetism is a type of persistent magnetic state in ideal crystals. Real crystals have impurities so they are harder to re

> "In condensed matter physics, altermagnetism is a type of persistent magnetic state in ideal crystals. Real crystals have impurities so they are harder to reason about. An ideal crystal is just one where we pretend it's perfect. > Altermagnetic structures are collinear The structure is lined up, like the diagrams in the article > and crystal-symmetry compensated, resulting in zero net magnetisation. And the alternating lines are symmetrical so they "compensate" for each other and cancel out. > the electronic bands in an altermagnet are not Kramers degenerate... (etc.) The spin is different like in the diagram. Ok, that's a bit lame. Anyone else can give a simple but mostly accurate explanation?