Unconventional spin textures emerging from a universal symmetry theory of spin-momentum locking

Liu, Yuntian; Li, Jiayu; Liu, Pengfei; Liu, Qihang

doi:10.1038/s41535-024-00682-y

npj Quantum Mater.

2024

DOI: 10.1038/s41535-024-00682-y

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Unconventional spin textures emerging from a universal symmetry theory of spin-momentum locking

Yuntian Liu,

Jiayu Li,

Pengfei Liu

et al.

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2024

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Tensorial approach to altermagnetism

Radaelli

2024

Phys. Rev. B

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I present a tensorial approach to the description of k/–k-symmetric, time-reversal-odd splitting of electronic bands in magnetic materials, which can be of nonrelativistic origin and was recently given the name of “altermagnetism”. I demonstrate that tensors provide a general framework to discuss magnetic symmetry using both spin groups and magnetic point groups, which have often been contrasted in recent literature. I also provide a natural classification of altermagnets in terms of the lowest-order tensorial forms that are permitted in each of the 69 altermagnetic point groups. This approach clarifies the connection between altermagnetism and well-known bulk properties, establishing that the vast majority of altermagnetic materials must also be piezomagnetic and MOKE-active, and provides a rational criterion to search for potential altermagnets among known materials and to test them when the magnetic structure is unknown or ambiguous. Published by the American Physical Society 2024

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Tensorial approach to altermagnetism

Radaelli

2024

Phys. Rev. B

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Unconventional spin textures emerging from a universal symmetry theory of spin-momentum locking

Cited by 1 publication

References 64 publications

Tensorial approach to altermagnetism

Tensorial approach to altermagnetism

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