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arXiv · 1707.08651

Interfacial exchange interactions and magnetism of Ni2MnAl/Fe bilayers

Rocio Yanes·Eszter Simon·Sebastian Keller·Balazs Nagyfalusi·Sergii Khmelevsky·Laszlo Szunyogh·Ulrich Nowak
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Abstract

Based on a multi-scale calculations, combining ab-initio methods with spin dynamics simulations, we perform a detailed study of the magnetic behavior of Ni2MnAl/Fe bilayers. Our simulations show that such a bilayer exhibits a small exchange bias effect when the Ni2MnAl Heusler alloy is in a disordered B2 phase. Additionally, we present an effective way to control the magnetic structure of the Ni2MnAl antiferromagnet, in the pseudo-ordered B2-I as well as the disordered B2 phases, via a spin-flop coupling to the Fe layer.

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Rocio Yanes, Eszter Simon, Sebastian Keller, Balazs Nagyfalusi, Sergii Khmelevsky, Laszlo Szunyogh, Ulrich Nowak. 2017-07-26. Interfacial exchange interactions and magnetism of Ni2MnAl/Fe bilayers. https://doi.org/10.1103/physrevb.96.064435

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