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Spin Hall effect emerging from a noncollinear magnetic lattice without spin-orbit coupling

MPS-Authors
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Zhang,  Yang
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Železný,  Jakub
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Sun,  Yan
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Yan,  Binghai
Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Zhang, Y., Železný, J., Sun, Y., van den Brink, J., & Yan, B. (2018). Spin Hall effect emerging from a noncollinear magnetic lattice without spin-orbit coupling. New Journal of Physics, 20: 073028, pp. 1-8. doi:10.1088/1367-2630/aad1eb.


Cite as: https://hdl.handle.net/21.11116/0000-0001-E1FB-6
Abstract
The spin Hall effect (SHE), which converts a charge current into a transverse spin current, has long been believed to be a phenomenon induced by spin-orbit coupling. Here, we identify an alternative mechanism to realize the intrinsic SHE through a noncollinear magnetic structure that breaks the spin rotation symmetry. No spin-orbit coupling is needed even when the scalar spin chirality vanishes, different from the case of the topological Hall effect and topological SHE reported previously. In known noncollinear antiferromagnetic compounds Mn3X (X = Ga, Ge, and Sn), for example, we indeed obtain large spin Hall conductivities based on ab initio calculations.