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arXiv · 1708.06223

Spin and electric currents induced by a spin-motive force in two-dimensional Dirac semimetals protected by nonsymmorphic symmetries

Tetsuro Habe
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Abstract

We theoretically study the spin and charge currents induced by a spin-motive force in a two-dimensional Dirac semimetal protected by nonsymmorphic symmetries. Glide mirror plane symmetry, a nonsymmorphic symmetry, leads to a constraint to the induced current; the spin-motive force acting on out-of-plane spin (in-plane spin) induces the pure spin (charge) current. We calculate the response function to the spin-motive force in linear response theory and find that the conductivity for the pure spin current remains non-zero even if the Fermi energy is crossing the node of linear dispersion. We also find that the dissipationless spin current is induced at the charge neutral point.

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Tetsuro Habe. 2017-08-21. Spin and electric currents induced by a spin-motive force in two-dimensional Dirac semimetals protected by nonsymmorphic symmetries. https://doi.org/10.1103/physrevb.96.085440

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