Browsing by Author "Uilhoorn, W"

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    Enhanced magnetism in field-cooled [Ni80Fe20/Mn]3 multilayers studied using polarized neutron reflectometry
    (IOP Publishing, 2016-05-11) Uilhoorn, W; Callori, SJ; Cortie, DL; Su, HC; Khaydukov, Y; Lin, KW; Klose, F
    Here, the interfacial magnetic coupling in an exchange biased [Ni80Fe20/Mn]3 multilayer system has been studied using polarized neutron reflectometry. Previous results on this system indicate the importance of the coupling between the Fe-Mn and Ni-Mn orbitals at the layer interfaces. Magnetic depth profiles of the multilayer were measured at low temperatures under field-cooled and zero-field-cooled conditions. While no definitive interfacial state was found, a magnetic moment enhancement of roughly 20-30% in the applied field direction was observed throughout the bulk of the NiFe layers in the field-cooled state as compared to the zero-field-cooled measurements. The origin of this enhancement also likely stems from Fe-Mn and Ni-Mn orbital coupling, but due to the interfacial roughnesses of the sample, the areas where this coupling plays an important role is no longer confined to the interface. © The Authors - Open Access CC-BY 3.0