Spiral spin structures in GdN/NdN bilayers
We will investigate the interlayer exchange in GdN/NdN bilayers and its influence on the spin spring structures in the two layers. The spin profiles are especially interesting for the opposing spin- and orbital- dominated magnetic moments, respectively, in GdN and NdN, spin profiles nucleated by the ferromagnetic Gd-Nd interface exchange. Such a spin-twisted structure has been signalled by our recent XMCD study of a related SmN/GdN bilayer. The vanishingly small magnetic moment in SmN prevents its exploration by PNR, so we turn now to the stronger orbital-dominated NdN material for the proposed measurements. PNR permits to investigate the spin spiral in this unique combination of spin-dominated GdN and orbital-dominated NdN, probing the magnetic depth profile in both layers.
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ANTON Eva-Maria; PEREIRA Lino; SAERBECK Thomas; TEMST Kristiaan; TRODAHL Joe; VAN BAEL MARGRIET and WILDES Andrew. (2015). Spiral spin structures in GdN/NdN bilayers. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-54-179
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