Table 1 Longitudinal (ρ) and transverse (ρ) resistivity components allowed by symmetry analysis in MnTe

From: Anisotropic magnetoresistance in altermagnetic MnTe

n-th order

ρ

ρ

2nd

\({\rho }^{(2)}\cos (2(\varphi -\theta ))\)

\(-{\rho }^{(2)}\sin (2(\varphi -\theta ))\)

3rd

0

\({\rho }^{(3)}\sin (3\theta )\)

4th

\({\rho }^{(4)}\cos (2\varphi +4\theta )\)

\(-{\rho }^{(4)}\sin (2\varphi +4\theta )\)

5th

0

0

6th

\({\rho }^{(6)}\cos (6\theta )\)

0

  1. The angle φ is hereby defined as the angle between the x axis (\([2\bar{1}\bar{1}0]\)) and the current direction, θ is the angle between the Néel vector and the x axis within the basal plane and ρ(i) represents the amplitude of the respective contribution. The even components in θ are assigned to AMR while the threefold transverse resistivity component ρ(3) corresponds to the Anomalous Hall Effect.