Altermagnetism
Type of magnetic state
Altermagnetism
In condensed matter physics, altermagnetism is a type of persistent magnetic state in ideal crystals. Altermagnetic structures are collinear and crystal-symmetry compensated, resulting in zero net magnetisation. Unlike in an PT-symmetric collinear antiferromagnet, the electronic bands in PT-non-symmetric antiferromagnets (altermagnets) are not Kramers degenerate, but instead depend on the wavevector in a spin-dependent way due to the intrinsic crystal symmetry connecting different magnetic sublattices. Related to this feature, key experimental observations were published in 2024. It has been speculated that altermagnetism may have applications in the field of spintronics.
Read on Wikipedia · Image Libor Šmejkal, CC BY-SA 4.0
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