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arXiv · 0708.3231

Current-induced torques due to compensated antiferromagnets

Paul M. Haney A. H. MacDonald
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Abstract

We analyse the influence of current induced torques on the magnetization configuration of a ferromagnet in a circuit containing a compensated antiferromagnet. We argue that these torques are generically non-zero and support this conclusion with a microscopic NEGF calculation for a circuit containing antiferromagnetic NiMn and ferromagnetic Co layers. Because of symmetry dictated differences in the form of the current-induced torque, the phase diagram which expresses the dependence of ferromagnet configuration on current and external magnetic field differs qualitatively from its ferromagnet-only counterpart.

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Paul M. Haney A. H. MacDonald. 2007-08-23. Current-induced torques due to compensated antiferromagnets. https://doi.org/10.1103/physrevlett.100.196801

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