A vacancy generically induces anisotropic magnetization textures in altermagnets whose multipolar form factor encodes the altermagnetic order, visible in classical systems under transverse field and in quantum systems at zero field.
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In anisotropic disordered 2D metals, altermagnetism emerges at zero temperature for larger anisotropy and coupling strengths, competing with ferromagnetism at zero spin-orbit coupling and with a paramagnetic phase at finite spin-orbit coupling via a quantum critical point.
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Anisotropic vacancy-induced magnetization textures in altermagnets
A vacancy generically induces anisotropic magnetization textures in altermagnets whose multipolar form factor encodes the altermagnetic order, visible in classical systems under transverse field and in quantum systems at zero field.
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Quantum Altermagnetic Instability in Disordered Metals
In anisotropic disordered 2D metals, altermagnetism emerges at zero temperature for larger anisotropy and coupling strengths, competing with ferromagnetism at zero spin-orbit coupling and with a paramagnetic phase at finite spin-orbit coupling via a quantum critical point.