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arXiv · 1011.4303

Possibility of exchange switching ferromagnet - antiferromagnet junctions

Yu. V. Gulyaev·P. E. Zilberman·E. M. Epshtein
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Abstract

Current flowing is studied in magnetic junctions consisting of a ferromagnetic metal (FM), antiferromagnetic conductor (AFM) and a nonmagnetic metal closing the electric circuit. The FM layer with high anisotropy and pinned spins of the magnetic atoms in the lattice acts as a spin injector relative to the AFM layer. To obtain resulting magnetization in the AFM layer, magnetic field is applied, which may be varied to control the magnetization. The spin-polarized current from the FM layer creates a torque and makes it possible to switch the magnetization. A possibility is shown to lower the threshold current density by the orders of magnitude by means of the magnetic field.

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Yu. V. Gulyaev, P. E. Zilberman, E. M. Epshtein. 2010-11-18. Possibility of exchange switching ferromagnet - antiferromagnet junctions. https://arxiv.org/abs/1011.4303

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