Quantum oscillation measurements confirm CrSb as a prototypical altermagnet

Quantum oscillation measurements have mapped the g-wave altermagnetic order parameter in chromium antimonide (CrSb), establishing it as a prototypical unconventional magnet. The study demonstrates momentum-dependent spin splitting, a hallmark of altermagnetism. The results position CrSb as a key reference material for research into this emerging class of magnetic materials.