Thermal switching of indirect interlayer exchange in magnetic multilayers

@article{Polishchuk2017ThermalSO,
  title={Thermal switching of indirect interlayer exchange in magnetic multilayers},
  author={Dmytro M. Polishchuk and Yu. O. Tykhonenko-Polishchuk and Anatolii Kravets and Vladislav Korenivski},
  journal={Europhysics Letters},
  year={2017},
  volume={118}
}
We propose a magnetic multilayer layout, in which the indirect exchange coupling (IEC also known as RKKY) can be switched on and off by a slight change in temperature. We demonstrate such on/off IEC switching in a Fe/Cr/FeCr-based system and obtain thermal switching widths as small as 10–20 K, essentially in any desired temperature range, including at or just above room temperature. These results add a new dimension of tunable thermal control to IEC in magnetic nanostructures, highly… 
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7 Citations

7 Citations

Tuning thermo-magnetic properties of dilute-ferromagnet multilayers using RKKY interaction

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Indirect exchange coupling in magnetic multilayers, also known as the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, is known to be highly effective in controlling the interlayer alignment of the…

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Theoretical analysis indicates that the measured step-like shape and hysteresis of the magnetization loops is due to local in-plane magnetic anisotropy of nano-crystallites within the strongly ferromagnetic films, which should help enable the practical use of RKKY for thermally switching the magnets in magnetic multilayers.

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The magnetocaloric effect in exchange-coupled synthetic-antiferromagnet multilayers is investigated experimentally and theoretically. We observe a temperature-controlled inversion of the effect,…

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