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Thermal switching of the magnetization in an iron film on a magnetically active template MnAs/GaAs(001)
Phys. Rev. B 81, 220401(R) – Published 2 June, 2010
DOI: https://doi.org/10.1103/PhysRevB.81.220401
Abstract
We show that the magnetization direction of a thin Fe film can be fully reversed in a thermal cycle of a few degrees close to room temperature, without making use of an external magnetic field. This result is obtained by depositing the Fe film on MnAs/GaAs(001), which displays a temperature-controlled self-organized pattern of submicron-wide stripes, alternating ferromagnetic and nonmagnetic phases. The temperature-dependent dipolar fields generated by this magnetically active template can be used to control the magnetization of the Fe overlayer.
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