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Antiferromagnets with vanishingly small (or zero) magnetization areinteresting candidates for spintronics applications. In the present paper wepropose two models for description of the current-induced phenomena inantiferromagnetic textures. We show that the magnetization that originates fromrotation or oscillations of antiferromagnetic vector can, via $sd$-exchangecoupling, polarize the current and give rise to adiabatic and nonadiabatic spintorques. Due to the Lorentz-type dynamics of antiferromagnetic moments (unlikethe Galilenian-like dynamics in ferromagnets), the adiabatic spin torqueaffects the characteristic lengthscale of the moving texture. Nonadiabatic spintorque contributes to the energy pumping and can induce the stable motion ofantiferromagnetic texture, but, in contrast to ferromagnets, has pure dynamicorigin. We also consider the current-induced phenomena in artificialantiferromagnets where the current maps the staggered magnetization of thestructure. In this case the effect of nonadiabatic spin torque is similar tothat in ferromagnetic constituents of the structure. In particular, the currentcan remove degeneracy of the translational antiferromagnetic domainsindistinguishable in the external magnetic field and thus can set into motionthe 180$^\circ$ domain wall.

Hydrodynamic theory of coupled current and magnetization dynamics in spin-textured antiferromagnets