Publication Date:
2018-05-01
Description:
Author(s): M. Belmeguenai, Y. Roussigné, H. Bouloussa, S. M. Chérif, A. Stashkevich, M. Nasui, M. S. Gabor, A. Mora-Hernández, B. Nicholson, O.-O. Inyang, A. T. Hindmarch, and L. Bouchenoire The interfacial Dzyaloshinskii-Moriya interaction (IDMI) provides a very important energy contribution in ultrathin-film magnetism, as it favors chiral magnetic structures and nonreciprocity in spin-wave propagation—features that open prospects for spintronic devices, such as magnetic random-access memory. Thus the authors use Brillouin light scattering to measure spin-wave nonreciprocity and investigate the dependence of the IDMI on thickness and annealing in ultrathin films of a Heusler alloy, with various buffer-layer materials. It turns out that the sign and strength of the effective IDMI constant depend on stacking order as well. [Phys. Rev. Applied 9, 044044] Published Mon Apr 30, 2018
Electronic ISSN:
2331-7019
Topics:
Physics
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