Dirac quadrupole altermagnets in 2D exhibit a topological orbital piezomagnetic effect from strain altering their quadrupole Dirac points.
Gonz´ alez-Hern´ andez, L.ˇSmejkal, K
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Spin-splitter magnetoresistance depends only on the relative angle between ferromagnetic magnetization and altermagnetic Neel vector, shows opposite-sign longitudinal response, and has proportional longitudinal-transverse signals, unlike spin-Hall magnetoresistance.
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Topological piezomagnetic effect in two-dimensional Dirac quadrupole altermagnets
Dirac quadrupole altermagnets in 2D exhibit a topological orbital piezomagnetic effect from strain altering their quadrupole Dirac points.
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Theory of Spin-splitter Magnetoresistance in Altermagnets
Spin-splitter magnetoresistance depends only on the relative angle between ferromagnetic magnetization and altermagnetic Neel vector, shows opposite-sign longitudinal response, and has proportional longitudinal-transverse signals, unlike spin-Hall magnetoresistance.