Table 1 Symmetry-based spin Berry curvature-driven intrinsic (TR even) and disorder-driven extrinsic (TR-odd) spin Hall conductivity tensors of a noncollinear AF hexagonal Mn3Sn

From: Efficient spin-pumping and spin transport across epitaxial Mn3Sn(0001) noncollinear antiferromagnet/permalloy interfaces

SHC tensor

\({{\boldsymbol{\sigma }}}^{x}\)

\({{\boldsymbol{\sigma }}}^{y}\)

\({{\boldsymbol{\sigma }}}^{z}\)

Intrinsic

TR-even

\(\left(\begin{array}{ccc}0 & 0 & 0\\ 0 & 0 & {\sigma }_{{yz}}^{x}\\ 0 & {\sigma }_{{zy}}^{x} & 0\end{array}\right)\)

\(\left(\begin{array}{ccc}0 & 0 & {\sigma }_{{xz}}^{y}\\ 0 & 0 & 0\\ {\sigma }_{{zx}}^{y} & 0 & 0\end{array}\right)\)

\(\left(\begin{array}{ccc}0 & {\sigma }_{{xy}}^{z} & 0\\ {\sigma }_{{yx}}^{z} & 0 & 0\\ 0 & 0 & 0\end{array}\right)\)

Extrinsic

TR-odd

\(\left(\begin{array}{ccc}0 & {\sigma }_{{xy}}^{x} & 0\\ {\sigma }_{{yx}}^{x} & 0 & 0\\ 0 & 0 & 0\end{array}\right)\)

\(\left(\begin{array}{ccc}{\sigma }_{{xx}}^{y} & 0 & 0\\ 0 & {\sigma }_{{yy}}^{y} & 0\\ 0 & 0 & {\sigma }_{{zz}}^{y}\end{array}\right)\)

\(\left(\begin{array}{ccc}0 & 0 & 0\\ 0 & 0 & {\sigma }_{{yz}}^{z}\\ 0 & {\sigma }_{{zy}}^{z} & 0\end{array}\right)\)

  1. The z-direction corresponds to the out-of-plane [0001] direction of Mn3Sn, whereas the orthogonal in-plane x- and y-directions corresponds to the [\(2\bar{1}\bar{1}0\)] and [\(01\bar{1}0\)] crystallographic axes of Mn3Sn, respectively. For clarity: the superscript index corresponds to the spin-polarization axis, whereas the first and second subscript indices represent the spin and charge current flow directions, respectively.